Fachzeitschriften

ChemCatChem

Artikel

One‐pot Heterogeneous Biocatalysis under Thermal Decay for Fructose Production from Lactose using Co‐Immobilized Enzymes: Modeling and Simulation

von Pablo Silva et al.

· 23.03.2024

One-pot heterogeneous catalysis using co-immobilized enzymes is simulated, both in batch and continuous stirred bioreactors to produce fructose from lactose. Results show that operational temperature has a stronger impact than the ratio between enzy...

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Unique Possibilities of Dynamic Metal–Polymer Interactions in Selective Hydrogenation

von Younghwan Park et al.

· 23.03.2024

The polymer-modified metal catalysts can give unique catalytic properties. With strongly metal–ligating functional groups, mobile polymer chains can spontaneously decorate the metal catalyst surfaces, forming metal–polymer interfaces. The polymer ch...

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Advances in Metal 3D Printing Technology for Tailored Self‐Catalytic Reactor Design

von Hyo‐Jin Kim et al.

· 23.03.2024

Metal 3D printing has attracted recent attention as a cutting-edge fusion technology in the catalyst field due to advantages such as design flexibility, variety of material selection, and ease of mass production. Additionally, catalytic efficiency c...

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A Procedure for Rational Probe Liquids Selection to Determine Hansen Solubility Parameters

von Amin Said et al.

· 23.03.2024

Structured selection of probe liquids for Hansen parameters - Two-step-strategy: The approach is to first determine the approximate position of the 3D-Hansen sphere using a well-selected set of sample liquids of different polarity and chemical struc...

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Computational Assistance in the Design of Efficient Oxygen Reduction Reaction Electrocatalysts

von Chunhong Qi et al.

· 23.03.2024

In this concept, we focus on the important role of theoretical calculations in determining catalytic active sites and understanding reaction mechanisms, emphasizing its importance in assisting the design and synthesis of efficient oxygen reduction r...

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Tuning Strong Metal‐Support Interactions for Enhancing Direct Deoxygenation of Biomass‐Lignin Derived Phenolics

von Shining Ding et al.

· 23.03.2024

Tuning SMSI for DDO of phenolics: SMSI alters the density and property of sites at the interfacial perimeter of metal/oxide catalyst, which can be used to tune the hydrodeoxygenation reaction that happens at the interface and requires multiple funct...

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Modification of Zeolite Morphology via NH4F Etching for Catalytic Bioalcohol Conversion

von Ploychanok Iadrat et al.

· 23.03.2024

This study gives insights into the advantages and constraints of post-synthetic NH₄F treatments in the effective production of hierarchical zeolite catalysts. Abstract Various commercial zeolites, including FER, MOR, ZSM-5, BEA, and FAU frameworks...

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NiCo2O4/MXene Hybrid as an Efficient Bifunctional Electrocatalyst for Oxygen Evolution and Reduction Reaction

von Ashalatha Vazhayil et al.

· 23.03.2024

Unlocking the power of NiCo₂O₄/MXene nanowire: The NiCo₂O₄/MXene composite prepared through a hydrothermal method demonstrated a superior OER/ORR performance Abstract For the advancement of electrochemical energy conversion and storage technologie...

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Boosting CO2 Electroreduction to Multi‐carbon Products via Oxygen‐rich Vacancies and Ce4+−O2−−Cu+ Structure in Cu/CeO2 for Stabilizing Cu+

von Minghui Fang et al.

· 23.03.2024

Managing the Cu loading on the surface of CeO₂ is an effective method to adjust the proportion of Cu⁺ to Cu⁰ active sites and the number of oxygen vacancies. The robust electron interaction within the Ce⁴⁺−O²⁻−Cu⁺ structure stabilizes Cu⁺ species, b...

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Accelerated Characterization of Electrode‐Electrolyte Equilibration

von Kevin Kan et al.

· 23.03.2024

Long term durability of electrocatalysts is best achieved via equilibration of the electrode and electrolyte. A new high throughput screening instrument is developed to identify self-passivating electrodes and their equilibrium dissolved metals conc...

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Core‐shell Co3O4@CoO Nanoparticles for Enhanced OER Activity

von Sascha Saddeler et al.

· 23.03.2024

Calcination of rock-salt CoO occurs via formation of defect-rich Co₃O₄@CoO core-shell nanoparticles. The OER activity of the core-shell nanoparticles decreases with increasing amount of catalytically inactive Co(III) cations. Abstract Core-shell C...

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Bioheterojunction‐Engineered System: A New Mechanism of BP/MoS2 Photothermal‐Photocatalytic Dual‐Power Synergistic Sterilization under NIR

von Shuyan Zhang et al.

· 23.03.2024

BP/MoS₂ heterojunction is prepared by solvothermal method using NMP, BP nanosheets and (NH₄)₂MoS₄. Under NIR irradiation, BP/MoS₂ can be heated up to 51.8 °C within 5 minutes by photothermal conversion. In addition, the existence of ⋅O₂ ⁻ and ¹O₂ in...

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Boosting Visible‐Light Carbon Dioxide Reduction with Imidazolium‐Based Ionic Liquids

von Lisa Eisele et al.

· 23.03.2024

The cooperative effect of imidazolium based ionic liquids on CO₂ photoreduction was investigated using [Ru(bpy)₃](PF₆)₂ and [Re(bpy)(CO)₃]Cl. Ionic liquids were employed as low-level additives (<10 % (w/v)), investigating counterion effects. The ...

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Ensemble Effects on Methanol Oxidation to Formaldehyde on Ferric Molybdate Catalysts

von Michael Bowker et al.

· 23.03.2024

Methanol oxidation on the surface of iron oxide (red), giving combustion to CO₂, on molybdenum oxide (blue) producing formaldehyde selectively, and on the mixed Mo−Fe surface yielding partial oxidation to CO. Abstract The properties of Mo-doped ir...

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Enzyme Mimics Based on Guanidinocalix[4]arene/ Nanodiamond Hybrid Systems with Phosphodiesterase Activity

von Carlo Alberto et al.

· 23.03.2024

Exploring Diamond Nanoparticles as Enzyme Mimics: A Study on Guanidinocalixarene-Derived Hybrid Systems This article delves into the untapped potential of diamond nanoparticles in enzyme mimicry. The study reveals the successful creation of hybrid s...

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Epoxidation of Olefins Catalyzed by Sulfate‐based Supramolecular Ion Pairs

von Fabian Schmidt et al.

· 23.03.2024

Supramolecular host-guest assemblies of sulfate ions and amidoammonium receptor cations are shown to act as catalysts for olefin epoxidation by hydrogen peroxide under biphasic conditions, showing the first case of sulfate ions being used as catalys...

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One‐step synthesis of ultra‐small amount of Pd‐Alloyed Zinc Nanosheets for efficient electrochemical CO2 reduction to CO

von Samah A. et al.

· 23.03.2024

Employing a one-step synthesis process, ultra-small amount of Pd activated Zn nanosheets electrodes with an exceptionally large surface area are prepared. The current study investigates catalytic activities under both normal and high-pressure condit...

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Front Cover: Modification of Zeolite Morphology via NH4F Etching for Catalytic Bioalcohol Conversion (ChemCatChem 6/2024)

von Ploychanok Iadrat et al.

· 23.03.2024

The Front Cover depicts the catalytic prowess of open-pore H-ZSM-5 zeolites in converting bioalcohols (methanol and ethanol) into biofuel. In their Research Article, C. Wattanakit, A. .C. K. Yip et al. presented the effect of postsynthesis fluoride ...

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Cover Feature: Core‐shell Co3O4@CoO Nanoparticles for Enhanced OER Activity (ChemCatChem 6/2024)

von Sascha Saddeler et al.

· 23.03.2024

The Cover Feature illustrates the calcination process of rock-salt CoO nanoparticles, which allow for the synthesis of core-shell Co₃O₄@CoO nanoparticles. In their Research Article, S. Schulz et al. demonstrate that the Co(III) cation concentration ...

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Progress of Copper‐based Nanocatalysts in Advanced Oxidation Degraded Organic Pollutants

von Xuanhao Li et al.

· 23.03.2024

This review focuses on the progress of copper-based nanocatalysts in wastewater treatment via AOPs, with a brief discussion on the mechanisms involved. Additionally, the challenges faced during wastewater treatment processes using oxidation, electro...

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Mimicking Non‐Canonical Radical Cyclizations in the Synthesis of Dibenzocyclooctadiene Natural Products

von Madison Carroll‐Pöhls et al.

· 23.03.2024

Unique chemical structures of biologically active natural products are often created by oxidative cyclizations catalysed by non-canonical iron oxygenases (involving long-lived radicals). Herein, our group‘s efforts to mimic these biosynthetic transf...

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Influence of Environmental Conditions on Electrocatalytic CO2 Reduction

von Lang Hu et al.

· 23.03.2024

This review summarizes the significant impact of environmental conditions on the efficiency and selectivity of electrocatalytic carbon dioxide reduction reactions in terms of reactor type, electrolyte composition, pressure, and temperature. Abstra...

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Thermodynamic and Catalytic Insights into Non‐Reductive Transformation of CO2 with Amines into Organic Urea Derivatives

von Mizuho Yabushita et al.

· 23.03.2024

Thermodynamics and catalysis: Non-reductive conversion of CO₂ with amines to produce value-added organic urea derivatives has been overviewed from the viewpoints of both thermodynamics and catalysis. The lessons described in this review could be hel...

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Application of co‐feeds in the catalytic conversion of light alkanes to aromatics: A comprehensive review

von Yong Hyun et al.

· 23.03.2024

Introducing allies: Co-feeding certain additives into light alkane aromatization has been established to effectively address some of the main concerns of the highly potent yet challenging reactions. This review gathers an abundance of information fr...

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Design and Synthesis of Heterogeneous Frustrated Lewis Pairs for Hydrogenation: From Molecular Immobilization to Defects Engineering

von Miaomiao Chen et al.

· 23.03.2024

Heterogeneous Frustrated Lewis pairs (FLPs) evoke multi-crossed disciplines research interesting due to its green recylability and facile designability. This review highlights recent contributions in the research direction of heterogeneous FLPs and ...

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Insight into the d–p Orbital Hybridization of Ru and B Dispersed g‐C3N4 Catalysts for Nitrogen Reduction Reaction

von Ji Zhang et al.

· 05.04.2024

The density functional theory calculations for the nitrogen reduction reaction show that the d-p orbital hybridization of Ru and B enhance catalytic activity with low NRR onset potential of −0.33 V and excellent competition to HER. Such improvement ...

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Mechanistic Studies of Continuous Partial Methane Oxidation on Cu−Zeolites Using Kinetic and Spectroscopic Methods

von Andrew D. et al.

· 05.04.2024

This concept paper summarizes opportunities for future research to provide molecular–level insights into the active site structures and reaction kinetics and mechanisms of continuous catalytic partial methane oxidation to methanol on copper–exchange...

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One‐Pot Synthesis of Carbon‐Supported Pd Nanoparticles with Ni and Carbon Matrix Protection for Durable Alkaline Hydrogen Oxidation Reaction

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Prospects in Sustainable Hydrosilylation by Biphase Catalysis

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Integrated Electrolytic Hydrogen Production for Boosting Energy Utilization

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Graphitic Carbon Nitride as a Metal‐Free Heterogeneous Semiconductor Photocatalyst for Fluoroalkylation Reactions

von Hao Wang et al.

· 04.04.2024

In this article, we describe a stable semiconductor material, g-CN nanosheets, can serve as a heterogeneous photocatalyst to accomplish intermolecular fluoroalkylation of assorted alkenes with fluoroalkanesulfinates and intramolecular fluoroalkyl mi...

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Unlocking the Potential of Liquid Multiphase Systems for Metal‐Catalysed Reactions

von Chiara Bersani et al.

· 04.04.2024

The potential of liquid-liquid multiphase systems in homogeneous and heterogeneous catalysis has been described through examples in recent literature, showcasing advantages, current challenges, and potential impacts on sustainability and biomass val...

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A Versatile Electrochemical Cell for Operando XAS

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Synthesis, Characterization and Reactivity Studies of Cobalt(III) Porphyrin‐Iodosylarene Adduct and Cobalt(III) Porphyrin p‐Cation Radical Species

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A Non‐Macrocycle Thiolate‐Based Cobalt Catalyst for Selective O2 Reduction into H2O

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Synergistic One‐pot Tandem Combination of Cu and Proline Catalysis: Stereodivergent Synthesis of Chiral Aldols from Primary Alcohols

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Magnetically Reusable Carbon Nanotube Coated Co‐based Catalysts towards Highly Efficient Transfer Hydrogenation of Nitroarenes

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Concepts of ethylene carbonylation with hydrogen gas and in‐situ generated hydrogen

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Electrocatalytic Applications of Carbon Dots and Their Composites

von Shiqin Gao et al.

· 02.04.2024

CDs are promising electrocatalysis for HER, OER, ORR, CO₂RR and other reactions. This review aims to help readers better understand the application of CDs in the field of electrocatalysis, reveal the reasons that affect electrocatalytic performance,...

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Ring Opening Copolymerization of Epoxides with CO2 and Organic Anhydrides Promoted by Dinuclear [OSSO]‐type Metal Complexes

von Fatemeh Niknam et al.

· 02.04.2024

In this study, we introduced efficient catalytic systems for terpolymerization reactions involving epoxide, cyclic anhydride, and CO₂. These systems featured bis-thioether [OSSO]-type Cr(III) and Iron(III) complexes, in combination with (bis(triphen...

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Reaction Mechanisms of Fe‐Dependent Fatty Acid Decarboxylases

von Ying Wang et al.

· 02.04.2024

Green synthesis of α-alkenes: This review outlines the reaction mechanisms employed by iron-dependent fatty acid (FA) decarboxylases in the conversion of FAs into α-alkenes, encompassing both heme and non-heme iron enzymes. The discussion underscore...

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On the Mechanism of the Lysosomal Enzyme Iduronate‐2‐Sulfatase. A Multiscale approach

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Recent Progress in Hollow Fiber Gas Diffusion Electrodes for CO2 Electroreduction

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Modified Halloysite as Catalyst for the Conversion of Hydroxymethylfurfural to Furandicarboxylic Acid: A DFT Investigation

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Cobalt‐Catalyzed Wacker‐type Aerobic Oxidation of Olefins into Ketones Enabled by PMHS: Giving Value to a Chemical Waste with Optimal Atom‐Economy

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NiFe Catalysts for Oxygen Evolution Reaction: Is There an Optimal Thickness for Generating a Dynamically Stable Active Interface?

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Solvent Effects on Heterogeneous Catalysis for Selective Hydrogenation

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Catalytic Approaches to the Halogen Dance Reaction for Molecular Editing

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Increasing Ligand Denticity and Stability for a Water Oxidation Electrocatalyst using P(V) as Connecting Element

von Farzaneh Saeedifard et al.

· 29.03.2024

In this work, we use a higher valence of phosphinates [P(V)] relative to that of carboxylates [C(IV)] to increase ligand denticity to modify a ruthenium water oxidation catalyst. Interestingly, the increased ligand denticity greatly enhanced the dur...

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Scalable bioreactor production of an O2‐protected [FeFe]‐ hydrogenase enables simple aerobic handling for clean chemical synthesis

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Engineering Tauriopine Dehydrogenase for Efficient Catalytic Synthesis of (R)‐Alpha‐ethyl‐2‐oxo‐1‐pyrrolidineacetic Acid

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Current Advances in the Enzyme Engineering of O2‐Dependent Enzymes – Boosting the Versatility and Applicability of Oxygenases and Oxidases

von Ammar Al‐Shameri et al.

· 28.03.2024

Enzyme engineering of O₂-dependent enzymes, such as oxidases and oxygenases, is crucial to increase their relevance in the chemical industry. Recently published studies will focus on optimising various aspects of O₂-dependent enzymes like activity, ...

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Intramolecular Coupling and Nucleobase Transfer – How Cytochrome P450 Enzymes GymBx Establish Their Chemoselectivity

von Jasmin Freytag et al.

· 27.03.2024

We report structures of a new class of CDP-modifying P450 enzymes, termed GymB_x. The enzymes catalyse both an intramolecular C−C bond formation within cyclo-l-Tyr-l-Tyr and a nucleobase transfer reaction, which is unique for CDP-modifying P450 enzym...

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Applications of Organosilanes in Visible Light‐induced Catalytic Asymmetric Reactions

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Biocatalytic and Regioselective Exchange of 2‐O‐Benzoyl for 2‐O‐(m‐Substituted)Benzoyl Groups to Make Precursors of Next‐Generation Paclitaxel Drugs

von Aimen Al‐Hilfi et al.

· 27.03.2024

A Taxus 2-O-benzoyltransferase (mTBT), assisted by CoA, is used to biocatalytically deconstruct older-generation paclitaxel precursors by removing the 2-O-benzoyl group from baccatin III or one of its 10-O-acyl analogs. mTBT then appends various non...

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Donor‐Acceptor Pyrene‐Based Covalent Organic Framework for Blue Light Photocatalytic Oxidative Coupling of Amines

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Bi site doped Ferroelectric BiFe0.95Mn0.05O3 Nanoparticles for Hydrogen Evolution Reaction

von Astita Dubey et al.

· 26.03.2024

Hydrogen evolution using doped bismuth ferrite nanoparticles (NPs) via electrocatalysis. Cyclic voltammetry backward scan represents smallest overpotential value for Dy doped BiFe_0.95Mn_0.05O₃ NPs. Abstract The investigation delves into the functio...

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First Insight into the Catalytic Activity of Stereolithographically 3D‐Printed Tannin‐Based Carbon Architectures

von Pauline Blyweert et al.

· 26.03.2024

Honeycomb carbon monoliths with different textural properties and surface chemistry were obtained from by stereolithography 3D printing of tannin-based resins. These new, architected materials have shown interesting performance as catalysts for the ...

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Artificial Biocatalysis: Quo Vadis?

von Aaron A. et al.

· 26.03.2024

Proteins and enzymes can be repurposed by the introduction of artificial cofactors or non-canonical amino acids (ncAAs). These artificial biocatalytic constructs turned into valuable tools to perform new-to-nature reactions with biocatalysts increas...

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Biocatalytic Syntheis of L‐Pipecolic Acid by a Lysine Cyclodeaminase: Batch and Flow Reactors

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Active sites formed on InVO4/Co3O4 S‐scheme heterostructure for photocatalytic hydrogen production

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One‐pot Reactions in Different Sites: A New Approach in Hydroformylation‐based Processes

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Nickel‐ and Palladium‐Catalyzed Copolymerizations of Norbornene with Polar α‐Olefins.

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Catalytic Ammonia Formation in a Microreaction Chamber with Electrically Intensified Arc Plasma

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Organometallic Mn(I) Complexes in Asymmetric Catalytic (Transfer) Hydrogenation and Related Transformations

von Dexin Fu et al.

· 26.03.2024

Recent advances in the use of chiral manganese(I) complexes in asymmetric catalysis are reviewed with particular emphasis on their application in (transfer) hydrogenation of C=O and C=N bonds as well as hydroamination and hydrophosphination of C=C b...

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The Construction of Helical Carbon‐Based Skeletons for Enhanced Electrocatalytic Performance

von Huijuan Yao et al.

· 26.03.2024

The helical structure is adopted to achieve the periodic surface curvature for carbon-based skeleton to regulate the electronic structure of electrocatalyst, which endows carbon-based materials with special catalytic properties. In this Concept, syn...

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Catalytic Enantioconvergent C(sp3)−N Coupling to Access Chiral Amines: A Concept Review

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Interface Engineering of Electrocatalysts for Efficient and Selective Oxygen Evolution in Alkaline/Seawater

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Progress through Temporal Analysis of Products and Steady‐state Isotopic Transient Kinetic Analysis to Elucidate Oxidation, CO2 Hydrogenation and Lower Olefins Production Reactions

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Operando Monitoring of Homolytic Cleavage of H2 into Surface Hydrides on Defective Cerium Dioxide Nanoparticles

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Nanoporous Au/Ag Catalyzed Benzylic Csp3 – H Oxidation of 9H‐Fluorene Derivatives and Similar Molecules with TBHP

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Recent Development in Synthesis of N‐methylamines with Amines and Methanol

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The Impact of the Ratio Between Stronger and Weaker Acid Sites on the Production of 5‐Hydroxymethylfurfural and Furfural from Monosaccharides

von José Lucas et al.

· 22.03.2024

Sulfonated carbons with 20–33 % of weaker acid sites (surface carboxylic acid, alcohol, and phenol groups) present the best turnover number of platform molecule production (TON_Furan ) from fructose and xylose. Abstract Sulfonated carbons and comme...

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In situ Tracking the Constrained Reconstruction of Cu3Pd@SiO2 Nanoparticles Driven by Redox Atmospheres

von Changcheng Xu et al.

· 22.03.2024

The microstructural constructions of bare Cu₃Pd particle and Cu₃Pd@SiO₂ particle under the stimuli of oxidizing and reducing environments were in situ studied in ETEM. Distinctive confinement of porous SiO₂ shell prevents phase separation in oxidiza...

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Efficient CO2 Electroreduction to CO Facilitated by Porous Ag(111)‐dominant Ag Nanofoams and Cooperative Ionic Liquid Electrolytes

von Hongyu Zhang et al.

· 22.03.2024

The porous Ag(111)-dominant Ag nanofoam catalysts were prepared by the in-situ electrolysis-deposition method in the IL electrolyte. This Ag nanofoam catalysts exhibited superior CO₂RR-to-CO performance of −125.40 mA cm⁻² j _CO and 99.37 % FE_CO than ...

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Selective Partial Reduction of Nitroarenes to the Hydrazoarene Catalyzed by Amine‐Modified Ordered Mesoporous Silica Immobilized Ionic Liquid (OMSIIL) Stabilised RuNPs

von S. Doherty et al.

· 22.03.2024

Ruthenium nanoparticles stabilised by ordered mesoporous silica, COK-12, decorated with an imidazolium based ionic liquid and an amine catalyses the partial reduction of nitrobenzene to hydrazobenzene with 100 % selectivity as well as the complete r...

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Ultrathin 2D Porphyrin‐Based Zr‐MOF Nanosheets as Heterogeneous Catalysts for Styrene Epoxidation and Benzylic C‐H Oxidation

von Haosen Wang et al.

· 22.03.2024

Two-dimensional Zr-TCPP(Fe) with nanoflower structure not only provides fully exposed accessible active sites but also reduces substrate/product transfer resistance, thus showing excellent catalytic performance for styrene epoxidation and benzylic C...

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Confinement Effects in Catalysis: Steering the Product Selectivity in Cannabidiol Isomerization by the Resorcinarene Supramolecular Capsule

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Diamine‐Assistant Synthesis of Cu@MFI Catalysts for Ethanol Dehydrogenation

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Photochemical Carbocatalysis: Fullerene‐, Carbon Nanotube‐ or Graphene‐Based Metal‐Free Photocatalysts for Organic Transformations

von Demetrios D. et al.

· 21.03.2024

Owing to their extraordinary properties, carbon allotrope nanostructures are in the pole position of materials toward a sustainable planet. Fullerene-, carbon nanotube- and graphene-based nanomaterials have been employed efficiently as metal-free ph...

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The Role of Cobalt‐Based Cocatalysts on BiVO4 for Photoelectrochemical Water Oxidation

von Zhiwei Nie et al.

· 21.03.2024

This work demonstrates the role of different cobalt-based cocatalysts on BiVO₄ for photoelectrochemical water oxidation. The electrochemical oxygen evolution reaction activities of these cobalt specimens were quite similar but the anodic photocurren...

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Innovative Approaches to Sustainable Ammonia Synthesis under Mild Conditions

von Eva Castillejos et al.

· 21.03.2024

The use of mild conditions for the synthesis of NH₃ from N₂ from air and H₂ from H₂O would allow its coupling with renewable energy. To meet this goal, new catalysts and new approaches for activating the reactants have been investigated recently to ...

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FUTURE RESEARCH DIRECTIONS IN THE PARTIAL OXIDATION OF METHANE TO METHANOL OVER COPPER‐CONTAINING ZEOLITES

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A Comparative Study on the Influence of N‐Doped Primary and Secondary Hydrochars on the Electrochemical Performance of Biobased Carbon Electrodes for Energy Storage Application

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Synthesis and characterization of Co(II) substituted Keggin‐type polyoxometalates as novel catalysts for the hydroformylation of 1‐hexene in a thermomorphic solvent system

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Non‐oxidative conversion of methanol to dimethyl ether, methyl formate and dimethoxymethane over Cu/Hβ catalyst: Tailoring product selectivity

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One‐pot Synthesis of Rh Nanoparticles in Polycationic‐shell, Triphenylphosphine Oxide‐functionalized Core‐crosslinked Micelles for Aqueous Biphasic Hydrogenation

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Design Strategy of Metal Nanoparticle Catalysis for C−H Bond Activation Reactions

von Shingo Hasegawa et al.

· 20.03.2024

Supported metal nanoparticles have attracted growing research interest as promising sustainable catalysts. This Concept article will describe recent studies that explored the novel catalytic functions and designing methods of metal nanoparticles for...

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CO2 Hydrogenation to Hydrocarbons over Fe‐Based Catalysts: Status and Recent Developments

von Laura Krausser et al.

· 20.03.2024

CO₂ hydrogenation to hydrocarbons over Fe-based catalysts offers a promising approach for CO₂ valorization. To achieve high process efficiency, a thorough understanding of the reaction mechanism and catalytically active phases is required. This conc...

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Advance of Single‐Atom Catalysts Confined into Pristine Metal‐Organic Frameworks and Their Energy‐Related Applications

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Toward Rational Design of Nickel Catalysts for Thermocatalytic Decomposition of Methane for Carbon Dioxide‐Free Hydrogen and Value‐Added Carbon Co‐Product: A Review

von Robert S. et al.

· 19.03.2024

This review evaluates data on catalyst development for thermocatalytic decomposition of methane. We present correlations between catalyst characteristics, catalytic activity (TOF), and catalyst stability (TON), notably for mono-metallic nickel and i...

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Key Role of Water in Copper‐ and Base‐free Sonogashira Coupling in Ethanol with [{Pd(µ‐OH)Cl(IPr)}2] as a Highly Effective Precatalyst

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Co3O4‐Based Catalysts for the Low‐Temperature Catalytic Oxidation of VOCs

von Menglan Xiao et al.

· 18.03.2024

Catalytic oxidation is an efficient method for VOCs elimination. Co₃O₄-based catalysts have been widely studied due to cost-effectiveness and superior low-temperature activity. The construction strategies and structure-activity relationship of Co₃O₄...

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Palladium‐Catalyzed C−H Alkenylation of α‐Aryl Alkyl Nitriles

von Jingwen Wang et al.

· 18.03.2024

The direct α-alkenylation of nitrile was realized with palladium catalyst for the first time. Both cyano group and alkenyl group in the product can be functionalized, rendering this method a powerful protocol to synthesis a series of useful compound...

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Mechanism and Kinetics Guided Design of Catalysts for Functionalized Nitroarenes Hydrogenation

von Chang Yao et al.

· 18.03.2024

This review describes the overview of mechanistic and kinetics insights for guiding the design of catalysts for selective hydrogenation of functionalized nitroarenes to produce anilines, and summarizes the strategies developed for controlling the se...

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Cyclic Deracemization of rac‐Sulfoxides via Alternating Biocatalytic Reduction and Light‐Dependent Oxidation Employing Eosin Y as Photocatalyst

von Sarah Bierbaumer et al.

· 18.03.2024

A cyclic deracemization process that utilizes alternately a biocatalytic enantioselective reduction employing (S)-selective methionine sulfoxide reductase from Pseudomonas alcaliphila (paMsr) supplemented with DTT as external reducing equivalent, an...

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Influence of Acid‐Base Characteristics of Different Structural‐Type Zeolites (FER, MFI, FAU, BEA) on Their Activity and Selectivity in Isobutanol Dehydration

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Palladium(II) NCS‐Pincer Complexes Mediated Regioselective Cross Dehydrogenative Alkenation of 2‐Arylthiophenes

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Ring‐Opening Mechanism of O‐heterocycles into α,ω‐Diols over Ni‐La(OH)3: C–O Bond hydrogenolysis of THFA to 1,5‐Pentanediol as a Case Study

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Microkinetic Modeling to Decode Catalytic Reactions and Empower Catalytic Design

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Recent Progress in the Synthesis of α‐Hydroxy Carbonyl Compounds with ThDP‐dependent Carboligases

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Exploring the Effects Behind the Outstanding Catalytic Performance of PdAg Catalysts Supported on Almond Shell‐Derived Activated Carbon Towards the Dehydrogenation of Formic Acid

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A Self‐regulated Process from Bench to Pilot Production of Non‐natural Heterocycles Using Halohydrin Dehalogenases.

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Acrylate‐derived RAFT Polymers for Enzyme Hyperactivation – Boosting the α‐Chymotrypsin Enzyme Activity Using Tailor‐Made Poly(2‐Carboxyethyl)acrylate (PCEA)

von Yannic Müllers et al.

· 15.03.2024

We study the hyperactivation of α-chymotrypsin (α-ChT) here, using acrylate-derived PCEA polymer. Enzyme activity assays revealed a pronounced enzyme hyperactivation capacity being superior to widespread PAA polymers. In a combined experimental and ...

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Transition‐Metal Catalyzed C−H Alkylation Using Epoxides as Alkylating Reagents

von Ze‐Shui Liu et al.

· 15.03.2024

This review highlights the recent advances in utilizing epoxides as alkylating reagents in transition-metal-catalyzed C−H alkylation, along with its associated synthetic applications in organic synthesis. Abstract The alkylation of arenes is one o...

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Structure Activity Relationships for Second‐Coordination Sphere Functional Group Dependent CO2 Reduction by Manganese Bipyridyl Electrocatalysts

von Vanna Blasczak et al.

· 15.03.2024

A series of twelve [fac-Mn(R₂bpy)(CO)₃(CH₃CN)]⁺ pre-catalysts with systematically varied second coordination sphere functionality for the proton-coupled electrocatalytic reduction of CO₂ are reported, whereby a structure-determined shift in catalyti...

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Chromium‐Catalyzed Reductive Cross‐Coupling to Construct C‐SS Bonds from Unactivated Alkyl Electrophiles

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Ruthenium NNN‐Based Pincer Complexes with Metal Ligand Cooperation as Catalysts for N‐Methylation of Anilines and Nitroarenes with Methanol as a C1 Source

von Nitish K. et al.

· 14.03.2024

Herein, we report a phosphine free novel ruthenium NNN based pincer complex that can act as a highly efficient catalyst for N-methylation of amines and direct N-methylation of nitroarenes using methanol as a C1 source under mild reaction conditions ...

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Synergistic Effects of Silica‐Supported Iron−Cobalt Catalysts for CO2 Reduction to Prebiotic Organics

von Kendra S. et al.

· 14.03.2024

We report on the fixation of CO₂ to prebiotic intermediates over mesoporous silica-supported Co−Fe catalysts. Supported catalysts convert CO₂ to various gaseous and liquid products under simulated hydrothermal vent conditions. Among different cataly...

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In‐Situ Characterization Technologies for Electrocatalytic Reduction nitrate to Ammonia on Copper‐Based Catalysts

von Chunhong Fu et al.

· 14.03.2024

This review introduces the in-situ characterization techniques frequently used in the electrocatalytic NO₃ ⁻ reduction to NH₃ (ENO₃RA), summarizes five pathways for converting *NO to NH₃ during ENO₃RA on Cu-based catalysts. And the application of th...

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USE OF SUSPENDED PARTICLES AS A NEW APPROACH TO INCREASE THE ACTIVE ELECTRODE AREA IN WATER ELECTROLYSIS EXPERIMENTS

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Kinetic Analysis of the Non‐Monotonic Response of Ethene Hydrogenation Rates to Ceria Surface Reduction

von Sadia Afrin et al.

· 13.03.2024

Ceria surface reduction leads to non-monotonic trends in ethene hydrogenation rates due to site requirements stipulating a balance between reduced and oxidized sites. The sensitivity of hydrogenation rates to surface reduction can be tuned by varyin...

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Metal‐Organic Framework Catalyzed Hydrogen Atom Transfer for Photocatalytic Organic Synthetic Applications

von Jing Ouyang et al.

· 13.03.2024

This Concept paper summarizes the recent advances in metal-organic framework (MOF) based hydrogen atom transfer catalysis. Design principles, effects and advantages of MOF platform, and current limitations are discussed. Abstract This concept pape...

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Polyoxometalate‐Based Frameworks: Construction Strategies and Photocatalytic Applications

von Lu Yang et al.

· 13.03.2024

Polyoxometalate-based frameworks, as a kind of material combined both the advantages of oxygen-rich polyoxometalates (POMs) and porous metal-organic frameworks (MOFs) within one single system, could serve as potential photocatalysts with diverse str...

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Effect of carbon oxygen functionalization on the activity of Pd/C catalysts in hydrogenation reactions

von M. Stucchi et al.

· 13.03.2024

The effects of oxygen functionalities on GNP (Graphene Nanoplatelets) has been investigated, functionalizing GNP in liquid phase using different oxidants (HNO₃, H₂O₂, KMnO₄), with the aim to tune the amount and the type of oxygen functionalities. Pd...

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Modern Cyclopropanation via Non‐Traditional Building Blocks

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An Overview of Syntheses of Salvinorin A and its Analogues

von Soufian Tibouti et al.

· 13.03.2024

Salvinorin A, a potent human hallucinogen, uniquely activates the kappa-opioid receptor (κ-OR) with high efficacy and selectivity. Its novel structure lacks nitrogenous components, distinguishing it from other opioids. With a complex trans-decalin c...

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Dehydrogenative Oxidation of Alcohols by Reusable Iridium Catalysts with a Cooperative Polymer Ligand

von Hiroki Maeda et al.

· 13.03.2024

High catalytic performance of the iridium-polymer complex for the dehydrogenative oxidation of alcohols was demonstrated. Bipyridonate moiety in the polymer structure acts as a cooperative “functional ligand”, realizing the enhancement of dehydrogen...

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Denitrification Technology and The Catalysts: A Review and Recent Advances

von Yueli Liu et al.

· 12.03.2024

Denitrification technology and its catalysts have received widespread attention in the industry due to the acceleration of industrialization and environmental pollution issues. The selection of various denitrification technologies and catalysts on t...

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Understanding the Reverse Water Gas Shift Reaction over Mo2C MXene Catalyst: A Holistic Computational Analysis

von Daniel Dolz et al.

· 12.03.2024

The catalytic performance of Mo₂C MXene for reverse water gas shift (RGWS) reaction is computationally assessed on an holistic fashion, unveiling the reaction mechanism and its thermodynamics through density functional theory (DFT) calculations on s...

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Strategies to Improve the Activity of Silver–loaded Calcium Titanate Crystal Photocatalyst for Photocatalytic Reduction of Carbon Dioxide with Water

von Hongxuan Qiu et al.

· 12.03.2024

Several strategies to improve the Ag/CaTiO₃ (Ag/CTO) photocatalysts for selective photocatalytic CO₂ reduction with water to form CO are shortly reviewed, such as fabrication of well–structured fine crystal photocatalysts with moderate size, modific...

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Alkaline Earth Metal Aluminate Support for Selective Oxidative Coupling of Methane

von Zenghao Wei et al.

· 12.03.2024

Utilizing MgAl₂O₄ as a support for Mn-doped K₂WO₄ catalysts to maintain high surface area under the harsh reaction conditions of OCM, to get high CH₄ conversion rata, compared with commonly used SiO₂ support. Abstract The oxidative coupling of met...

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Molybdenum Catalyzed Acceptorless Dehydrogenation of Alcohols for the Synthesis of Quinolines

von Beatriz Garcia et al.

· 11.03.2024

Molybdenum triazolylidene complexes displayed excellent catalytic activity in the synthesis of a wide variety of quinolines through acceptorless dehydrogenative coupling reactions. Abstract The first molybdenum triazolylidene complexes catalyzing ...

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Achieving 78.2 % Faraday Efficiency for Electrochemical Ammonia Production Via Covalent Modification of CNTs with B4C

von Tian Li et al.

· 11.03.2024

carbon nanotubes (CNTs) have been demonstrated to have far-reaching applications in modifying electrodes, and electrocatalysts due to their high surface area and high mobility for charge carriers. Present study shows a catalyst constructed from cova...

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Assessing the Intrinsic Activity of Pt‐Group Electrocatalysts for Carbon Monoxide Oxidation: Best Practices and Benchmarking Parameters

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Recent Understanding of Water‐Assisted CO2 Hydrogenation to Alcohols

von Luiz H. et al.

· 08.03.2024

Continuously removing water is desired to alleviate thermodynamic barriers during CO₂ hydrogenation. However, at low concentrations, water can enhance alcohol productivity. Here, we discuss the main findings that led to an atomic-level understanding...

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Pushing the Efficiency of the Selective and Base‐free Air‐Oxidation of HMF by Varying the Properties of Carbon‐based Supports

von Dominik Neukum et al.

· 08.03.2024

Support for base-free: Pt supported on various activated carbon and carbon black materials was prepared and tested for the base-free, selective air-oxidation of 5-(Hydroxymethyl)furfural to 2,5-Furandicarboxylic acid. Depending on the chemical prope...

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Unlocking the Mysteries of Technical Catalyst Deactivation: A View from Space

von Shweta Sharma et al.

· 08.03.2024

The paper highlights spatially–resolved characterization techniques for investigating deactivation of technical catalysts. Employing advanced analytical tools, such studies can provide deep insights into the heterogeneous nature of catalyst deactiva...

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Comparison of Structure and Reactivity of Hydrothermally Prepared Bi−Mo−Co−Fe−O Catalysts in Selective Propylene and Isobutene Oxidation

von Linda Klag et al.

· 07.03.2024

The selective oxidation of lower olefins over bismuth molybdate based multicomponent catalysts are key reactions in chemical industry for the functionalization of hydrocarbons. To understand the catalysts’ working principles, three Bi−Mo−Co−Fe-oxide...

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Cross‐Coupling Reaction of Alkyl Halides with Aldehydes through NHC Catalysis

von Zhuo‐Zhuo Zhang et al.

· 07.03.2024

N-heterocyclic carbene-catalyzed cross-coupling reaction has been recognized as an enabling tool in the synthesis of complex ketones in recent years. This strategy enables the direct acylation of various alkyl halides under an organocatalytic system...

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Tailoring the Active Species Distribution of Heterogeneous Catalyst for Regulating the Chain Structure of Nascent Polyethylene

von Wei Li et al.

· 07.03.2024

This review systematically summarizes and highlights recent developments on the strategy of tailoring the distribution of active species in heterogeneous catalysis, which effectively enhances the controlling of molecular weight distribution, branch ...

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Cooperative Covalent–Noncovalent Organocatalysis of the Knoevenagel Condensation Based on an Amine and Iodonium Salt Mixture

von Alexandra A. et al.

· 07.03.2024

A synergetic cocatalytic effect provided by an iodonium salt in the base-catalyzed Knoevenagel condensation has been found. The diphenyliodonium triflate serving as the halogen bond-donating Lewis acid provides the higher cocatalytic effect than zin...

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A C3‐Symmetric Amino Organocatalyst for Asymmetric Synthesis of Warfarin and Analogues: Mechanistic Insight from ESI‐MS Spectrometry and Computational Calculations

von Andrea Sorato et al.

· 07.03.2024

A C3-symmetric amino–based organocatalyst can be easily prepared starting from chiral trans-N-Boc-1,2-diaminocyclohexane. Its activity on asymmetric synthesis of warfarin and analogues has been explored allowing moderate–high yields and good stereos...

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Polymeric Carbon Nitride Nanosheets as a Metal‐Free Heterogeneous Catalyst for Highly Efficient Methanolysis of Polycarbonates

von Yanling Xu et al.

· 07.03.2024

Here, we have developed an environmentally friendly and cost-effective catalyst for the alcoholysis of C−O-linked plastics. Our catalyst is made of polymeric carbon nitride nanosheets, which are free of metals. It has shown excellent performance in ...

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Vicinal Diones and α‐Keto Esters as Electrophiles of Aldolases for Stereoselective Construction of Tertiary Alcohols

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Catalyst‐Green Solvent System for Highly Efficient Production of Carboxylic Acids from Light Oxygenates, CO2 and H2

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Transition Metal and Photocatalyst Free Arylation via Photoexcitable Electron Donor Acceptor Complexes:Mediation and Catalysis

von Alexey A. et al.

· 06.03.2024

Electron donor acceptor (EDA) complexes formed between arylating agents and nucleophilic substrates or additives, undergo photoexcitation to produce aryl radicals. Two main modes of reactivity for such complexes exist: mediation, where EDA complex i...

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Carbon quantum dots for efficient hydrogen production: A critical review

von Mukesh Sharma et al.

· 06.03.2024

Carbon quantum dots (CQDs), or fluorescent carbon nanoparticles, have attracted a lot of attention due to their many uses in chemical sensing, biomedical imaging, nanotechnology, photovoltaics, LEDs, and hydrogen production. This review's main goal ...