ArtikelThe Effect of SnO2 Surface Properties on CO2 Photoreduction to Higher Hydrocarbonsvon Juliana A. et al. · 23.03.2023 CO2 photoreduction using SnO2 under UV radiation lead to CO, C2H4, and C2H6, with higher selectivity for CH4. The same reaction under visible light using Au-decorated SnO2 produces CH4 and a smaller amount of CO but in much lower yields. Although t...
ArtikelElectrochemical Conditioning of Metallurgically Prepared NiFe3 Binary Alloy for Facile Oxygen Evolution Reactionvon Li Lin et al. · 23.03.2023 NiFe3 alloy ingot was metallurgically prepared to simulate the Ni/Fe ratio in most high Ni steels. Electrochemical conditioning of this alloy in KSCN and KOH solutions proved effective in compositional modulation and morphological reconstruction for...
ArtikelInfluence of the Ageing and Drying Steps of a CoMoP/γ‐Al2O3 Catalyst onto the Multi‐Scale Molybdenum Active Phase Organizationvon Candice Cottrez et al. · 23.03.2023 The study of synthesis parameters for CoMoP/γ-Al2O3 catalysts shows that the drying step controls slabs and slab aggregates morphology. Freeze-drying drives to smaller slabs and less numerous but bigger slab aggregates than a conventional drying whi...
ArtikelCopper‐Phthalocyanine‐based Covalent Organic Polymers for Electrocatalytic Ambient Ammonia Synthesisvon Cheng Jiang et al. · 23.03.2023 Carbon nanotubes with high electrical conductivity modified by oxygen-containing groups were chosen as a substrate, while copper phthalocyanines with abundant catalytic sites and well-defined catalytic centers were used as monomers and ligands for s...
ArtikelPt : Ge Ratio as a Lever of Activity and Selectivity Control of Supported PtGe Clusters in Thermal Dehydrogenation von Patricia Poths et al. · 23.03.2023 Ethane dehydrogenation: The Pt : Ge ratio can be used to tailor the activity and deactivation propensity of supported PtGe clusters for thermal ethane dehydrogenation. Abstract Ethylene is a key molecule in the chemical industry and it can be obta...
ArtikelSynthesis of Highly Active and Stable Carbon by a Soft‐Template Hydrothermal Route as Pt Substrate for Oxygen Reduction Reactionvon Jithin Antony et al. · 23.03.2023 Carbon synthesis via microwave-assisted hydrothermal soft-template: One very innovative aspect in this work is related to the hosting of Pt nanoparticles into the mesoporous cavities of carbon support spheres that allowed impressive enhancement of t...
ArtikelSynthesis of Polycarbonates from CO2 Promoted by Immobilized Ionic Liquid Functionalized di‐Mg Complex Catalystvon Sreenath Pappuru et al. · 23.03.2023 Ring-opening copolymerization: Design, synthesis, and utilization of new supported ionic liquid functionalized dinuclear magnesium complex as a single-component solid catalyst for the ring-opening copolymerization (ROCOP) of CO2 and cyclohexene oxid...
ArtikelTiO2−WOx Coatings on Aluminum Open Cell Foams as Potential Packing Material for Esterification of Glycolic Acid with Ethanolvon Laura Reyes et al. · 23.03.2023 A catalytic packing material with potential use in multiphase reactions with aluminum foams as a structured support was developed. The catalytic foams have significant surface area (>300 m−1) and void fraction (>0.8) with catalytic loads of 17...
ArtikelPhotocatalytic Oxygen Transfer as an Innovative Route for N2O Upgrading von Oriane Delaunay et al. · 23.03.2023 Photocatalytic upgrading of N2O as an oxygen donor is proved through the selective oxidation of phosphines under mild conditions, with doped Ag@TiO2 catalyst and release of N 2 as a benign co-product. A mechanism of the highly active and selecti...
ArtikelFacile Synthesis of Palladium‐Silver Dilute Alloy Catalyst for Acetylene Hydrogenationvon Shanshan Chai et al. · 23.03.2023 Alloy catalyst for acetylene hydrogenation: A palladium-silver dilute alloy catalyst (PdxAg/Al2O3) was fabricated and showed an outstanding performance for acetylene hydrogenation, which contains the Pd1Ag single-atom-alloy (SAA) and Pd2Ag dimer-all...
ArtikelWhole‐cell Mediated Carboxylation of 2‐Furoic Acid Towards the Production of Renewable Platform Chemicals and Biomaterialsvon Ximena Lopez‐Lorenzo et al. · 23.03.2023 Biocatalysis Talents: The C5 substrate 2-Furoic acid (FA) can become a platform chemical for the biosynthesis of 2,5-Furandicarboxylic acid (FDCA) using a whole-cell approach for CO2 fixation and further production of bio-based polymers. Abstract ...
ArtikelSolventless Dimethylamine Borane Dehydrogenation in the Presence of Transition Metal(0) Nanoparticles Loaded on Cellulosevon Derya Ozhava et al. · 23.03.2023 Dimethylamine borane dehydrogenation: This paper reports four different metal nanoparticles (MNPs, M=Pd, Ni, Cu and Ru) loaded on cellulose throughout dehydrogenation of dimethylamine-borane in the absence of a solvent at 35.0±0.1 °C. This study giv...
ArtikelPoly‐(Imidazolium‐Methylene) Chloride Mediated Self‐Assembly Strategy to Modulate Electronic Structure of Carbon Nitride for Enhanced Visible‐Light Photocatalytic Hydrogen Evolutionvon Xue Zhang et al. · 23.03.2023 Solar Hydrogen Production: An efficient visible-light-driven okra-like tubular g-C3N4 photocatalyst for solar hydorgen was developed via a poly-(imidazolium-methylene) chloride (PImM)-mediated assembly strategy, in which PImM acts as an electronic s...
ArtikelMethanation of CO2 Over Nanostructured Cobalt‐Actinide Bimetallic Oxidesvon Ana C. et al. · 23.03.2023 Nanostructured cobalt-actinide (An=Th, U) aerogels and nanofibers were tested as catalysts for the methanation of CO2. The activity and selectivity of the catalysts are high (conversion of CO2>40 %, selectivity to CH4>95 %) and enhanced by the...
ArtikelDesign of Multicationic Copper‐Bearing Layered Double Hydroxides for Catalytic Application in Biorefineryvon Iqra Zubair et al. · 23.03.2023 Catalysis in biorefineries: Organosolv pulping performs fractionation of lignocellulose with recuperation of lignin. Is it possible to start depolymerisation and hydrodeoxygenation of lignin already in pulping, by using the solvent as hydrogen-donor...
ArtikelFabrication of Transition Metal (Mn, Co, Ni, Cu)‐Embedded Faveolate ZnFe2O4 Spinel Structure with Robust CO2 Hydrogenation into Value‐added C2+ Hydrocarbonsvon Wei Cai et al. · 23.03.2023 Doped ZnFe2O4 catalysts for CO2 hydrogenation: CO2 and H2 were preferring to be adsorbed on Fe sites, and the introduced Co strengthened the adsorption and activation of reactant gas, caused by the additional Co sites. The increased Fe3C percentage ...
ArtikelStructural Analysis of PtPd Core‐Shell Bimetallic Nanoparticles and their Enhanced Catalytic Performance for Ethanol Oxidation Reactionvon América Higareda et al. · 23.03.2023 PtPd core-shell nanoparticles with uniform size, morphology, and controlled Pd-layers were synthesized by epitaxial growth reaction. The synergic effects of the structural and elemental configuration showed an enhanced oxophilic active surface, and ...
ArtikelButane Hydroisomerisation Using Pt‐Promoted OSDA‐Free Zeolite Betavon Ka Yan et al. · 23.03.2023 3D, 12-membered ring zeolites: A bifunctional catalyst using a low Pt content and Al-rich zeolite Beta from seeded synthesis showed efficient catalytic activity in the isomerisation of butane to give good isobutane yields. Abstract Hydroisomerisat...
ArtikelCO2 or Carbonates – What is the Active Species in Electrochemical CO2 Reduction over Fe‐Porphyrin?von Reza Khakpour et al. · 23.03.2023 CO2 and carbonate species are in a fast equilibrium in aqueous solution. Based on DFT computations we show that H2CO3 or HCO3 − are the most likely reactants for CO2RR while the reaction through CO2 is slow. Abstract CO2 reduction is typically per...
ArtikelCover Feature: Enhanced Stability of Atomically Dispersed Pd Catalysts via Ionic Liquid Layer Deposition for Selective Acetylene Hydrogenation to Ethylene in Excess Ethylene (ChemCatChem 6/2023)von Youngchan Kim et al. · 23.03.2023 The Cover Feature shows highly selective and coke-resistant atomically dispersed Pd catalysts via ionic liquid (IL) layer deposition for selective acetylene hydrogenation to ethylene in excess ethylene. In their Research Article, I. Ro and co-worker...
ArtikelFront Cover: Hydrogenation of CO2 into Formates by Ligand‐Capped Palladium Heterogeneous Catalysts (ChemCatChem 6/2023)von M. Dolores et al. · 23.03.2023 The Front Cover illustrates the hydrogenation of CO2 into formate by Pd nanoparticles of different size supported on TiO2 using water as solvent. In their Research Article, M. D. Fernández-Martínez and C. Godard demonstrate that the smallest ones we...
ArtikelTransition Metal‐based Perovskite Oxides: Emerging Electrocatalysts for Oxygen Evolution Reactionvon Pawanpreet Kour et al. · 23.03.2023 The scope of transition metal-based perovskite oxides as electrocatalysts for anodic oxygen evolution reaction is briefly demonstrated. The importance of various activation strategies is surveyed, such as defect engineering, doping, tuning morpholog...
ArtikelDirected evolution to reverse epoxide hydrolase enantioselectivity for meso‐3,4‐epoxytetrahydrofuranvon Kaori Hiraga et al. · 29.03.2023Chiral vicinal diols are important intermediates in the synthesis of pharmaceuticals. Epoxide hydrolases catalyze hydrolytic ring opening of epoxides to produce the corresponding vicinal diols, providing an attractive way to access these building blo...
ArtikelRecent Advances in Catalytic Chemical Recycling of Polyolefinsvon Kirill Faust et al. · 29.03.2023Polyolefins and especially polyethylenes (LLDPE, LDPE and HDPE) and polypropylene (PP) contribute a great deal to the growing amounts of plastic waste with a combined production share of almost 50% by mass. While being almost universally applicable, ...
ArtikelIridium Incorporation into MnO2 for an Enhanced Electrocatalytic Oxygen Evolution Reactionvon Uddipana Kakati et al. · 29.03.2023 Ir/β-MnO2 shows improved OER performance compared to Ir/δ-MnO2 and IrO2 due to a strained lattice containing Ir−O−Mn structural motif with optimum bond strength, along with Mn3+ an OER active species. (Spectator atoms are labelled as red O, olive Ir...
ArtikelSelective, Aerobic Oxidation of Methane to Formaldehyde over Platinum ‐ a Perspectivevon Eric Steen et al. · 29.03.2023 Various routes for the selective oxidation of methane are compared in this perspective with a special focus on the newly developed route using oxygen over a platinum-based catalyst in the presence of liquid water. Possible ways to improve the cataly...
ArtikelTuning the Surface Wettability of Pd/COFs for Selective Hydrogenationvon Xiang Li et al. · 29.03.2023Covalent organic frameworks (COFs) with imine linkage are promising solid supports to disperse ultra-fine metal nanoparticles (NPs), but the modulation of their surface wettability, an important parameter affecting the catalytic performance of metal ...
ArtikelRole of Titanium in Ti/SiO2‐Supported Metallocene‐based Olefin Polymerization Catalysts. Part 1: Genesis of Active Sites and Catalytic Performancevon Silvia Zanoni et al. · 29.03.2023Performance enhancement of metallocene-based olefin polymerization catalysts can be obtained, among others, by the chemical modification of their support. We investigated a titanated SiO2 (Ti/SiO2) as an improved support material for zirconocene cata...
ArtikelPreparation of Carbon‐Supported Tungsten Carbides: Comparative Determination of Surface Composition and Influence on Cellulose Transformation into Glycolsvon Firat Goc et al. · 28.03.2023 Chemical valorization of lignocellulosic biomass: A thorough investigation has demonstrated the great dependence on the preparation route towards the formation of surface species at the surface of carbon supported nickel and tungsten carbides, and t...
ArtikelStability of a Silica‐Supported Second Generation Hoveyda‐Grubbs Catalyst Under Atmospheric Conditions: Experimental and Computational Studiesvon Pablo D. et al. · 28.03.2023 Second generation Hoveyda-Grubbs catalyst: Despite silica-supported second generation Hoveyda-Grubbs (HG2) is an efficient catalyst for heterogeneous self-metathesis reactions, it was found that the its activity critically decreases when the materia...
ArtikelHydrogen Atom Transfer for C(sp3)–H Functionalization Enabled by Photoredox/Thianthrene/Methanol Synergistic Catalysisvon Xiaoyi Zhang et al. · 28.03.2023A synergetic catalytic system of organophotocatalyst 4CzIPN, thianthrene, and methanol was developed for visible-lightinduced Giese reactions of various alkanes and alkenes, upon using alkoxy radicals as hydrogen atom transfer reagents. The reaction ...
ArtikelIntroducing Structural Diversity: Fe2(MoO4)3 Immobilized in Chitosan Films as an Efficient Catalyst for the Selective Oxidation of Sulfides to Sulfonesvon Laura Libero et al. · 27.03.2023This work reports how the immobilization of Fe2(MoO4)3 in chitosan films affects the oxidation reaction of sulfide derivatives to sulfates in the dark, resulting in good yields and excellent selectivity. As demonstrated, a variety of substituted sulf...
ArtikelOrganocatalytic Assembly Based on Aromatic Donor–Acceptor Interactions for the Asymmetric Aldol Reaction on Watervon Garrett Meso et al. · 27.03.2023 New class of a prolinamide-thiourea catalytic system: An organocatalytic system self-assembled through the aromatic donor-acceptor interaction has been developed for the first time. Under the on-water condition, it catalyzes aldol reactions in high ...
ArtikelIn Situ Generation of Pt2Co3 Nano‐Alloys in Porous N‐Doped Carbon for Highly Efficient Electrocatalytic Hydrogen Evolutionvon Bing Li et al. · 27.03.2023 Nano-alloys for hydrogen evolution reaction: Pt2Co3 nano-alloys anchored on the surface of the N-doped carbon support are precisely synthesized by metal complex-controlled pyrolysis, which exhibit an extraordinary HER catalytic activity and stabilit...
ArtikelMorphology Changes of Cu2O Catalysts During Nitrate Electroreduction to Ammoniavon Dimitra Anastasiadou et al. · 26.03.2023This manuscript reports the electrosynthesis of ammonia from nitrate catalysed Cu derived from Cu2O materials. Cu2O (111) and (100) preferential grain orientations were prepared through electrodeposition.. Cu derived from Cu2O (111) is more active an...
ArtikelRare Earth Metal‐Containing Ionic Liquid Catalysts for Synthesis of Epoxide/Cyclic Anhydride Copolymersvon Yvonne Manjarrez et al. · 25.03.2023The perfectly alternating ring-opening copolymerization of epoxides and cyclic anhydrides has been an emerging route to diverse polyesters. Simple catalysts have been targeted for this polymerization to decrease the cost and air-sensitivity of the ca...
ArtikelPolystyrene Resins: Versatile and Economical Support for Heterogeneous Nanocatalysts in Sustainable Organic Reactions von Anuj S. et al. · 24.03.2023 Polystyrene resins- The enhancement in activity and selectivity could be concurrently attained by exploiting the synergy between the metal NPs and the support material, like abundant and inexpensive polystyrene resins (PSR). Developments on PSR-supp...
ArtikelExploring the Promotion of γ‐Al2O3 on Pd/CeO2‐Catalyzed Low‐Concentration Methane Oxidation Using Operando DRIFTS‐MSvon Tao Li et al. · 24.03.2023 CeO2/γ-Al2O3, Pd/CeO2, and Pd/CeO2/γ-Al2O3 were used for catalyzing low-concentration CH4 oxidation. γ-Al2O3 can efficiently promote CH4 oxidation on Pd/CeO2 and the formation of bicarbonate that is easily gasified to CO2. Abstract CeO2/γ-Al2O3, ...
ArtikelIn situ Reaction Monitoring in Photocatalytic Organic Synthesisvon Amiera Madani et al. · 24.03.2023 Reaction monitoring: In situ monitoring of photocatalytic reactions is a promising approach to identify elusive of intermediates and to obtain kinetic insights for mechanistic analysis. This minireview surveys suitable technologies and discusses sel...
ArtikelHybrid Organometallic and Enzymatic Tandem Catalysis for Oxyfunctionalisation Reactionsvon Chiara Domestici et al. · 24.03.2023 Let′s help each other: This study shows how [Cp*Ir(pica)NO3], which generates H2O2 by NaHCOO and O2, assisted by FMN co-catalyst, can successfully cooperate with rAaeUPO, which takes advantage by the in situ produced H2O2 to efficiently oxyfunctiona...
ArtikelAn Amorphous Teflate Doped Aluminium Chlorofluoride: A Solid Lewis‐Superacid for the Dehydrofluorination of Fluoroalkanesvon Minh Bui et al. · 24.03.2023 A pentafluoroorthotellurate doped aluminium chlorofluoride (ACF-teflate, AlCl0.1F2.8(OTeF5)0.1) was synthesized. The amorphous Lewis-superacidic material catalyzes the dehydrofluorination of fluoroalkanes to yield olefins and H2. Abstract An anion...
ArtikelVisible Light‐Triggered Radical Annulation of ortho‐Thioaryl Ynones: A General Approach to Prepare 3‐Sulfenylthiochromonesvon Ricardo H. et al. · 24.03.2023 The Cover Feature shows the office environment of an organic synthesis laboratory, centered around a “synthetic tools desk,” which is a place where ideas are discussed on a daily basis. In their Research Article, R. H. Bartz et al. demonstrated one ...
ArtikelSimultaneous Activation of Carbon Dioxide and Epoxides to Produce Cyclic Carbonates by Cross‐linked Epoxy Resin Organocatalystsvon Chenjie Lu et al. · 24.03.2023The development of efficient bifunctional organocatalysts for the catalytic conversion of CO2 under mild conditions remains particularly challenging. Inspired by the synergistic mechanism of intramolecular Lewis acid-base active sites, we report a se...
ArtikelOctahedral Iron‐Acyl‐Nitrenoid Intermediates in Sulphur –Nitrogen Coupling and Hydrogen Atom Transfer Reactionsvon Monica Rodríguez et al. · 23.03.2023Iron-nitrenoid complexes can activate C–H bonds and, thus, potentially directly transform C–H into C–N bonds. Low-coordination complexes are the main reported systems; however, octahedral iron complexes can be air-stable alternatives forming the iron...
ArtikelEfficient and sustainable one‐pot synthesis of α‐carbonyl homoallylic alcohols from benzaldehyde and allylic alcohols using both NHC and nickel catalystsvon Yasmina Homrani et al. · 23.03.2023α-carbonyl homoallylic alcohols have been synthesized in a one-pot reaction from benzaldehyde and allylic alcohols. The nickel-catalyzed allylation of α-hydroxyketones has first been studied and allowed the identification of Ni(cod)2/dppf as the most...
ArtikelRu‐Catalyzed Hydrogenolysis of Methanol: A Computational and Kinetics Studyvon Nina et al. · 22.03.2023In spite of numerous kinetic studies, the mechanism of the polyol hydrogenolysis on a Ru catalyst surface is still not fully understood. Here, the decomposition of the C1 alcohol methanol can serve as an entry to the clarification of the mechanism. T...
ArtikelSelective Oxidation of Alkylarene in H2O Catalyzed by the Polyoxometalate Supported Chromium Catalystvon Chengchun Zhao et al. · 22.03.2023The selective oxidation of alkylarene is a quite straightforward and appealing way for production of aromatic aldehydes, ketones and aromatic acid derivatives. We synthesized Cr(III) catalyst, (NH4)3[CrMo6O18(OH)6], with reasonable activity towards s...
ArtikelEngineered Biocatalysts for Enantioselective Reductive Aminations of Cyclic Secondary Aminesvon Ashleigh et al. · 22.03.2023Reductive aminases (RedAms) have recently emerged as promising biocatalysts for the synthesis of chiral secondary amines by coupling primary amines with aldehydes/ketones. However, access to tertiary amines remains more problematic, particularly when...
ArtikelEthanol dry reforming over bimetallic Ni‐containing catalysts based on ceria‐zirconia for hydrogen productionvon Valeria Fedorova et al. · 22.03.2023Mixed Ce-Zr oxides with a fluorite structure were synthesized by the solvothermal method in a supercritical medium of isopropanol. The prepared mixed oxides Ce0.5Zr0.5O2 and Ce0.75Zr0.25O2 were used as supports for 5wt%Ni and bimetallic 2.5wt%Ni+2.5w...
ArtikelPeroxygenase‐Promoted Enzymatic Cascades for the Valorisation of Fatty Acidsvon Yinqi Wu et al. · 22.03.2023Utilisation of fatty acids generally relies on pre-existing functional groups such as the carboxylate group or C=C-double bonds. Addition of new functionalities into the hydrocarbon part opens up new possibilities for fatty acid valorisation. In this...
ArtikelRole of Titanium in Ti/SiO2‐Supported Metallocene‐based Olefin Polymerization Catalysts. Part 2: Particle Fragmentationvon Silvia Zanoni et al. · 22.03.2023A commercial SiO2 modified by the addition of a TiO2 layer on its surface and pore walls offers a support for metallocene-based ethylene polymerization catalysts with a 35% improved catalytic activity. The effect of such support modification on the c...
ArtikelRecent Advances in the Catalytic Synthesis of 1,3‐Diaminesvon Beiqi Yang et al. · 22.03.20231,3-Diamines are important for many biologically active molecules, but there have been fewer studies on the synthesis of 1,3-diamines than those on the synthesis of 1,2-diamines. Relatively speaking, there are not sufficient reports on non-catalytic ...
ArtikelElectrocatalytic Water Oxidation by Hydrolytically Stable Metal‐organic Frameworks at Both Neutral and Alkaline Medium: Inverse Relation of Dimensionality with Catalytic Activityvon Soumen et al. · 21.03.2023Catalyst development for water splitting to afford hydrogen as a green source of energy is one of the major areas of research in the pursuit of sustainable energy technology solution. Herein, we report the electrocatalytic water oxidation behaviour ...
ArtikelHydrosilylation of Carbonyl Compounds Catalyzed by Iridium(I) Complexes with (‐)‐Menthol‐Based Phosphorus(III) Ligandsvon Konrad Stęsik et al. · 21.03.2023Iridium(I) complexes with phosphorous(III) ligands possessing naturally-occurring menthol unit(s)[IrCl(COD){PPhn(OMenth)3-n}], n=0,1,2 (C1-C3) were synthesized and fully characterized by 1H, 13C, 31P NMR, FT-IR spectroscopic techniques and elemental ...
ArtikelCatalytic Nucleophilic and Electrophilic Functionalization of Dihydroquinoxalin‐2‐onesvon Jaume Rostoll-Berenguer et al. · 21.03.2023Quinoxalin-2-ones are an important class of nitrogen heterocycles present in several compounds with biological activities and the synthetic chemist have focused their attention in this particular class of compounds. As a result, in the last years the...
ArtikelAn Immobilised Silicon‐Carbon Bond‐Forming Enzyme for Anaerobic Flow Biocatalysisvon Sabrina Gallus et al. · 21.03.2023The recent development of tailored cytochrome enzymes has enabled “new-to-nature” reactivities, such as the biocatalytic formation of carbon-silicon bonds using the cytochrome c from Rhodothermus marinus. To maximise the potential of this remarkable ...
ArtikelCatalytic Degradation of Aliphatic Ethers using the Lewis Superacidic Bis(perfluoropinacolato)silanevon Florian Tschernuth et al. · 21.03.2023The exceptional catalytic activity of a neutral Si(IV) Lewis superacid was highlighted on the degradation of oligo- and polyethers via ring closing metathesis. Model reaction experiments with diglyme and 1,5-dimethoxypentane outlined a significantly ...
ArtikelElectrochemcial Reduction of Diarylketones and Aryl Alkenesvon Ce Bi et al. · 20.03.2023The reduction of ketones or alkenes is an attractive and challenging task in organic chemistry and has widespread applications in the production of fine chemicals, fragrances, pharmaceuticals, vitamins and functional materials. Classical reduction me...
ArtikelElectrocatalytic Oxidative Coupling of Methane on NiFe Exsolved Perovskite Anode: Effect of Watervon Jaesung Kim et al. · 20.03.2023 Exsolution of NiFe nanoparticles: La0.7Sr0.2Ni0.2Fe0.8O3 (LSNF) perovskite is an effective anode for the electrocatalytic oxidative coupling of methane (OCM). The improvement of their catalytic characteristics induced by the exsolution of NiFe nanop...
ArtikelPhytate Enhances Intermediate Adsorption Kinetics on Nickel for Efficient Primary Aniline Electrooxidationvon Jiayuan Li et al. · 18.03.2023Nickel (Ni)-based electrocatalysts are promising for use in the primary amine electrooxidation reaction (pAOR) due to the in situ generation of oxygen intermediates on their surface. Herein, phytate-coordinated Ni foam (PA–NF) is reported as an effic...
ArtikelEffects of Group IB Metals of Au/Ag/Cu on Boosting Oxygen Evolution Reaction of Cobalt Hydroxidevon Xianchao Wang et al. · 17.03.2023 High OER performances: The M−Co(OH)2 composite electrocatalyst was prepared by electrodeposition to improve the oxygen evolution reaction (OER) performance. The effects of IB group metal elements on the OER performance and electronic structure of Co...
ArtikelFine‐Tuning Texture of Highly Acidic HZSM‐5 Zeolite for Efficient Ethanol Dehydrationvon Peerapol Pornsetmetakul et al. · 17.03.2023 Efficient ethanol dehydration: The texture of highly acidic HZSM-5 zeolite was fine-tuned by reducing nanosheet/plate size of zeolite domains. Selective and stable ethylene yield was achieved by the hierarchical HZSM-5 with the ultra-thin nanosheet ...
ArtikelCatalytic hydrotreatment of algal HTL bio‐oil over phosphide, nitride, and sulfide catalystsvon Bruno et al. · 17.03.2023Global energy demand and environmental concerns about limiting CO2 emissions have been growing recently. This is why fuel production from renewable resources has become a priority. In this context, microalgae represent an attractive alternative carbo...
ArtikelMechanocatalysis: simple and rapid mechanochemical synthesis of ammonia in hydrogen, nitrogen, and water systemvon Chengli He et al. · 17.03.2023Mechanical force-induced N2 fixation is an emerging strategy for single-step ammonia synthesis under room temperature and atmospheric pressure. Here, we demonstrated a simple and rapid approach to synthesize NH3 in the N2 + H2 + H2O system and illust...
Artikel[Pd(2‐pymo)2]n/Al2O3 as MOF single site catalyst for the selective hydrogenation of acetylenevon Sebastian Hock et al. · 17.03.2023Despite the great potential of metal-organic frameworks (MOFs) in catalysis, industrial applications are still scarce. This is mainly due to a lack of performance when changing from idealized lab conditions towards realistic conditions of the actual ...
ArtikelCuCr Bimetallic Catalyst for Selective Electrooxidation of Ammonia at Room Temperaturevon Annie Cleetus et al. · 17.03.2023 Non-noble bimetallic CuCr catalysts were analyzed as potential catalysts for ammonia oxidation. A catalyst with 90 % of Cu with a current density of 22 mA/mg was found to be even more active than Pt (14 mA/mg) under the same conditions. The selectiv...
ArtikelPromotional Effect of Zirconium Doping on the NH3‐SCR Activity of CeO2 and CeO2‐TA Modified by Thiourea: A Comparative Studyvon Jun Li et al. · 17.03.2023 Selective catalytic reduction with ammonia (NH3-SCR): Thiourea (TA) modification and Zr doping present a synergistic promotional effect on the NH3-SCR activity of CeO2 catalyst, and Ce0.95Zr0.05O z -TA exhibits the best catalytic performance amon...
ArtikelComputational Discovery of Active and Selective Metal‐Nitrogen‐Graphene Catalysts for Electrooxidation of Water to H2O2von Payal Chaudhary et al. · 16.03.2023A direct electrosynthesis of H2O2 from either O2 or H2O is an attractive strategy to replace the energy-intensive industrial anthraquinone process. Two-electron water oxidation reaction (2e-WOR) offers several advantages over the oxygen reduction rea...
ArtikelAqueous‐Phase Partial Oxidation of Methane over Pd−Fe/ZSM‐5 with O2 in the Presence of H2von Gun Sik et al. · 15.03.2023 Pd-Fe/ZSM-5 catalysts selectively oxidize CH4 to methane oxygenates (CH3OH, HCOOH, etc.) in water using in situ-generated H2O2. 0.28 %Pd–0.56 %Fe/ZSM-5 showed a stable catalytic performance in a continuous flow reactor. Abstract The selective oxid...
ArtikelCalcium‐Modified PtSn/Al2O3 Catalyst for Propane Dehydrogenation with High Activity and Stabilityvon Xin‐Qian Gao et al. · 15.03.2023 The designed PtSnCa/Al2O3 catalyst with superior propane dehydrogenation performance benefited from the regulation of the platinum active phase microenvironment that consists of unsaturated aluminum, tin, and calcium cations, which promotes the disp...
ArtikelSelective Electroreduction of Oxalic Acid to Glycolic Acid by Mesoporous TiO2 Spheresvon Wenjing Xu et al. · 15.03.2023 Mesoporous TiO2 spheres with large specific surface area were synthesized by a simple two-step method for the electrocatalytic reduction of oxalic acid. The maximum Faradaic efficiency for glycolic acid reached 73.9 % at −0.5 V at ambient temperatur...
ArtikelInsight into Electrochemical Promotion of Cu/Co3O4 Catalysts for the Reverse Water Gas Shift Reactionvon Ju Wang et al. · 15.03.2023In this study, Copper-modified Co3O4 (Cu/Co3O4) catalysts were investigated for the reverse water gas shift (RWGS) reaction at 200-400℃ under different CO2:H2 ratios. It was found that the electrocatalytic performance of Co3O4 was improved by loading...
ArtikelOn the Importance of Benchmarking the Gas‐Phase Pyrolysis Reaction in the Oxidative Dehydrogenation of Propanevon Manouchehr Nadjafi et al. · 14.03.2023The oxidative dehydrogenation of propane (ODP) proceeds catalytically on a gas-solid interface (heterogeneous reaction) and/or in the gas phase (homogeneous reaction) via a radical chain process. ODP may therefore combine interrelated contributions f...
ArtikelDehydrogenation of Glycerol for CO2 Reduction in One‐Pot Production of Lactic Acid and Formic Acid with Ru‐MACHOvon Mengyu Jin et al. · 13.03.2023 Ru-MACHO catalysts can simultaneously satisfy parallel reactions because of having the outstanding ability to dehydrogenate glycerol into LA and hydrogenate CO2 into FA under conditions of 200 °C and 48 h. Abstract Dehydrogenation of glycerol for ...
ArtikelSolid‐Phase Lipase‐CuNPs biohybrids as bifunctional catalysts for one‐pot parallel synthesis of 2,3,4‐triacetyl‐D‐gluconic acidvon Noelia Losada-Garcia et al. · 12.03.2023Solid-phase lipase/metal nanobiohybrids, generated by growth of copper nanoparticles on enzyme matrixes immobilized on graphene, were used as heterogeneous catalysts with dual-activity for the regioselective production of 2,3,4-triacetyl-D-gluconic a...
ArtikelTake Advantage of the N‐Nucleophilicity of Imine in Catalytic Cyclization Reactionsvon Linqing Wang et al. · 10.03.2023Imines, or Shiff bases are basic and important synthons in modern chemical synthesis, which are widely used in methodological studies, synthesis of natural products or pharmaceutical agents, and the construction of organic porous materials and relati...
ArtikelConcepts of Computational Approach to Explore Heterogeneous Catalysts for Direct Methane Conversionvon Yuta Tsuji et al. · 09.03.2023The nonoxidative coupling of methane has attracted much attention because it yields two useful products: ethane and hydrogen. However, low conversion at low temperatures and carbon deposition at high temperatures are considered problematic. In this C...
ArtikelPt‐Promoted In2O3 Reduction and Reconstruction at the Pt/In2O3 Interface in CO2 Hydrogenation Atmospherevon Ruichen Lu et al. · 09.03.2023 Mechanistic details of the metal/metal-oxide interface for heterogeneous processes: The surface physicochemical properties of In2O3 (111) and Pt/In2O3 (111) were investigated using ambient pressure X-ray photoelectron spectroscopy in the atmosphere ...
ArtikelExperimental and ab initio Investigation on the Effect of CO and CO2 during Hydrodeoxygenation of m‐Cresol over Co/SBA‐15von Camila A. et al. · 09.03.2023 Supported Nanocatalysts: Cobalt nanoparticles finely supported on SBA-15 shows a high selectivity toward methylcyclohexenes in the HDO reaction of m-cresol. The feed stream composition significantly affects the stability of catalyst. The presence of...
ArtikelConstruction of Nitrogen‐Doped Carbon Functionalized Ni(OH)2 for Selective CO2 Photoreductionvon Zhidong Yang et al. · 09.03.2023 A photochemical route has been developed to prepare a nitrogen-doped carbon (NC) encapsulated Ni(OH)2 hybrid in which the carbon modification can modulate the electronic structure of Ni(OH)2. When used as a catalyst, the Ni(OH)2/NC hybrid exhibited ...
ArtikelElectro‐oxidation of polyols on Bi‐modified Pt in acidic media (HClO4). Understanding activity and selectivity trendsvon Gabriela Soffiati et al. · 08.03.2023Herein we show that Pt(111) and Pt(100) can produce the ketone through the oxidation of the secondary carbon of the polyols. After the Bi modification, the selectivity for the ketone formation increases. On the other hand, we observe that pure and Bi...
ArtikelDecatungstate‐photocatalyzed functionalization of α‐imino esters for the preparation of unnatural α‐amino acid derivativesvon Alexandra Jorea et al. · 08.03.2023A library of unnatural α-amino acid derivatives has been prepared via the hydrofunctionalization of the C=N bond in a set of compounds belonging to the family of α-imino esters. The devised methodology capitalizes on the use of tetrabutylammonium dec...
ArtikelUnderstanding the Role of Potassium Addition on the Active Centers and Reaction Pathway of MoS2 Catalysts for Water Gas Shift Reactionvon Weitao Zhao et al. · 08.03.2023MoS2 is a promising sulfur-resistant candidate for water-gas shift (WGS) reaction, and its catalytic efficiency can be promoted by alkali metal. In this work, a series of K-modified MoS2/Al2O3 catalysts with variable K/Mo ratios were prepared to eluc...
ArtikelComparison between Chemoenzymatic and Bienzymatic Cascades Leading to Morita–Baylis–Hillman Adductsvon Yinuo Li et al. · 07.03.2023 Chemoenzymatic and bienzymatic cascades: We herein present three cascade routes to produce MBH adducts and compare the key advantages and challenges of the chemoenzymatic and bienzymatic methodologies. Abstract Chemoenzymatic and bienzymatic casca...
ArtikelKinetic Protection of a Water‐Soluble Olefin Metathesis Catalyst for Potential Use under Biological Conditionsvon Catriona C. et al. · 07.03.2023 Kinetic protection of a transition metal catalyst: Addition of nitrate salt can bestow kinetic protection upon an olefin metathesis catalyst. In the presence of nitrate the catalyst exhibits much faster reaction kinetics, which allows productive cat...
ArtikelP‐Modified Single‐Atom Cu Catalyst Boosting Electrocatalytic Performance of NO3‐ Reduction to NH3von Honghai Wang et al. · 06.03.2023Electrochemical conversion of NO3- to NH3 production is of great environmental significance for water pollution treatment and can artificially close the nitrogen cycle. However, direct nine protons and eight electrons transfer lead to low Faraday eff...
Artikelon‐line optimization of integrated carbon capture and conversion process via the Ratings concept: A combined DFT and microkinetic modeling approachvon Jakapob Noppakhun et al. · 03.03.2023The integrated carbon capture and conversion (ICCC) is a promising catalytic process to produce syngas from CO2 and CH4 via a combined separation and reactor unit. Besides, its performance can fluctuate from the inconsistent feed ratio resulting from...
ArtikelPhotohemilabile PSP‐Rhodium Pincer Catalysts for Dehydrogenative C−H Bond Activation of Arenesvon Naoyuki Toriumi et al. · 03.03.2023 Photohemilabile ligands, which have reversible coordination and decoordination ability to transition metal centers upon excitation, have been developed by the combination of Thioxantphos-based PSP-pincer ligands and rhodium. The PSP−Rh pincer comple...
ArtikelCatalysts for isocyanate cyclotrimerizationvon Yunfei Guo et al. · 03.03.2023The formation of isocyanurate via cyclotrimerization of isocyanates is widely reported to provide a variety of polyurethane materials with improved chemical and physical properties such as weatherability, mechanical properties, thermal stability and ...
ArtikelEffect of metal layer support structures on the catalytic activity of NiFe(oxy)hydroxide (LDH) for the OER in alkaline mediavon Christopher Gort et al. · 03.03.2023Photoelectrochemical (PEC) cells promise to combine the benefits of photovoltaics and electrolysis in one device. They consist of a photoabsorber functionalized with an electrocatalyst to harvest faradaic currents under reduced overpotentials. To pro...
ArtikelIn situ generation of intimacy in MnOx+SAPO‐34 mechanical mixture for the conversion of syngas to light olefinsvon Christophe Coudercy et al. · 02.03.2023Bifunctional MnOx+SAPO-34 catalysts were evaluated for the conversion of syngas to light olefins (OXZEO process). They were prepared, either by mechanical mixing of 100 µm-scale particles agglomerates, or by mixing of ethanol suspensions, containing ...
ArtikelChemical Speciation by Quick‐XAS and Raman Spectroscopy: Validation of Two Cells for in situ Time‐Resolved Monitoring of the Impregnation and Drying of CoMoP/Al2O3 Catalystsvon Beatriz Barata et al. · 02.03.2023 Hydrodesulfurization catalysts: This work presents the in situ EXAFS and ex situ Raman monitoring of the impregnation and drying of CoMoP hydrodesulfurization catalysts. Two cells were developed, which allow for the reproduction of the laboratory pr...
ArtikelBoosting direct oxidation of methane with molecular oxygen at low temperature over Rh/ZSM‐5 catalystvon Xing Yu et al. · 01.03.2023As a clean fossil energy and chemical feedstock, development of breakthrough strategies for direct conversion of methane (CH4) into various chemicals under mild reaction conditions is highly desired. Herein, Rh/ZSM-5 catalyst was reported to convert ...
ArtikelRegioselective Reduction of NAD+ to 1,4‐NADH with a Bioinspired Metal Sulfide Electrocatalystvon Shujie Tian et al. · 01.03.2023Nicotinamide adenine dinucleotide (NAD(P)H) is an important energy carrier and charge transfer mediator in organisms. The efficient and regioselective reduction of NAD(P)+ to NAD(P)H is of significance in biocatalysis, nature and artificial photosynt...
ArtikelCatalysis in Latin Americavon Daniela Zanchet et al. · 28.02.2023 This collection of papers from Latin American catalytic researchers was born from online interaction during the trialing times of the COVID-19 pandemic. The collection showcases the diversification that the field of catalysis has had in our region a...
ArtikelAn Efficient and Eco‐Friendly Synthesis of Protoberberine and 13‐Me Protoberberine Alkaloids via Electrochemical Acceptorless Dehydrogenationvon Weijian Li et al. · 27.02.2023 Natural product electrosynthesis: An eco-friendly protocol for the synthesis of protoberberine and 13-Me protoberberine alkaloids relies on electrochemical acceptorless dehydrogenation at the last stage, using 10 mol% I2 as redox mediator at room te...
ArtikelNickel‐Based Electrocatalysts for Hydrogen Oxidation Reaction under Alkaline Electrolytesvon Yimin Jin et al. · 27.02.2023Developing highly efficient and cost effective electrocatalysts towards hydrogen oxidation reaction under alkaline electrolyte is essential for the commercial application of anion exchange membrane fuel cells (AEMFCs). Nickel-based materials showed...
ArtikelNickel‐Catalyzed Dry Reforming of Methane via Modulating the Zirconia Shapesvon Ruifan Tan et al. · 23.02.2023The shape of the carriers has a profound impact on the catalytic performance of metal-supported catalysts. Herein, ZrO2 of different shapes (nanorods-like, spherical or irregular nanoparticles, demoted as RZ, SPZ, and IPZ, respectively) are adopted t...
ArtikelOrganophotocatalytic Mechanisms: Simplicity or Naïvety? Diverting Reactive Pathways by Modifications of Catalyst Structure, Redox States and Substrate Preassembliesvon Mark et al. · 21.02.2023Photocatalysis is a powerful tool to assemble diverse chemical scaffolds, yet a bottleneck on its further development is the understanding of the multitude of possible pathways when practitioners rely only on oversimplified thermodynamic and optical ...
ArtikelControlling Activity of Heterogeneous Cu Single‐Atom Catalysts by Fine‐Tuning the Redox Properties of CeO2‐TiO2 Supportsvon Ali et al. · 20.02.2023Understanding and enhancing the activity of heterogeneous single-atom catalysts (SACs) are indispensable aspects to use them in industrial applications. Among these, low-temperature CO oxidation is considered as a model reaction for testing a wide-ra...
