ArtikelSingle Crystal Layered Oxide Cathodes: The Relationship between Particle Size, Rate Capability, and Stabilityvon Wessel Bergh et al. · 16.09.2023 The need for longer-lasting batteries is driving the development of single crystal (SC) layered oxide cathodes (NCMs). This work provides the conceptual framework for the relationship between particle size, diffusivity, and stability for SC NCMs. Th...
ArtikelFlexible g‐C3N4 Enhancing Superior Cycling Stability of ZnFe2O4‐Fe2O3 Nanosheet Composites as High‐Capacity Anode Materials for Lithium‐Ion Batteriesvon Jian Huang et al. · 16.09.2023 When used as lithium-ion batteries (LIBs) anode, ZFO-Fe2O3/g-C3N4 offers discharge specific capacity of 1518.5 mAh g−1 after 300 cycles at the current density of 500 mA g−1 and can still reach 639.2 mAh g−1 at high current density of 10 A g−1. Abs...
ArtikelCopper and Cobalt Co‐catalyzed Selective Electrooxidation of Phenol to p‐Benzoquinone Under Mild Conditionsvon Weizhuo Xu et al. · 16.09.2023 An efficient electrolysis system was developed to convert phenol into p-benzoquinone selectively by Co3+ and Cu2+ under mild conditions. The active metal ions (Cu2+ and Co3+) were continuously regenerated at the anode through electrooxidation and th...
ArtikelElucidating the Influence of Intercalated Anions in NiFe LDH on the Electrocatalytic Behavior of OER: A Kinetic Studyvon Maike Berger et al. · 16.09.2023 Nickel-iron layered double hydroxides (NiFe LDH) are promising electrocatalysts for alkaline OER. Their dual Tafel behavior can be assigned to the physisorbed H2O2 mechanism and Temkin adsorption conditions. The intercalated anions influence the gov...
ArtikelPhosphorus‐Doped Porous Carbon Coated Graphite Felt as An Efficient and Reusable Cathode for Electro‐Fenton Degradation of Parabensvon Jia Shen et al. · 16.09.2023 Phosphorus-doped porous carbon coated graphite felt (P-GF): It exhibited excellent hydrophilicity and infiltrating property, and it enhanced electrochemical reduction of O2 and could significantly enhance the yield of H2O2. About 98.5 % of methylpar...
ArtikelN/P Co‐doped Micro‐/Mesoporous Carbons Derived from Polyvinyl Pyrrolidone–Zn0.2@ZIF‐67 with Tunable Metal Valence States towards Efficient Water Splittingvon Yang Ming et al. · 16.09.2023 A facile PVP assisted Zn0.2@ZIF-67 framework is thermally converted to micro-mesoporous carbon with abundant cobalt particles. Post phosphorus doping into carbon shells improves catalysts’ conductivity and modulates the electronic environment of Co ...
ArtikelMnSe/Co0.85Se/N‐CNFs as Binder‐Free Anodes for Sodium/Potassium‐Ion Batteriesvon Changsheng Xu et al. · 16.09.2023 Binder-free anodes: The long-cycle performance test showed that the MnSe/Co0.85Se/N-CNFs electrode had a discharge capacity of 262.3 mAh g−1 after 700 cycles at 1 A g−1, which was higher than those of MnSe/N-CNFs and Co0.85Se/N-CNFs (217.3 and 163.0...
ArtikelImprovement in Rate Capabilities of Hybrid Cathodes with Through‐Holed Layers of Cathode Material and Activated Carbon on Each Side of a Current Collector in Lithium‐Ion Batteries.von Mitsuru Yamada et al. · 16.09.2023 Hybrid cathodes composed of a lithium-ion battery (LIB) cathode material layer and an activated carbon (AC) layer were drilled using a picosecond pulsed laser beam. Under open-circuit conditions, after the rapid discharging, the AC layer discharged ...
ArtikelFront Cover: Single Crystal Layered Oxide Cathodes: The Relationship between Particle Size, Rate Capability, and Stability (ChemElectroChem 18/2023)von Wessel Bergh et al. · 16.09.2023 The Front Cover presents the metaphor of cathode particles, their morphology and underlying rate capability as racers with different performances. Here we present a way to think about single crystal layered oxide cathodes, which stand apart from mor...
ArtikelTransparent Conductive Encapsulants for Photoelectrochemical Applicationsvon Grace A. et al. · 21.09.2023 The Front Cover illustrates a TCE sheet, where the rainbow is the light reaching the photoelectrode, the spheres are the conductive pathway through the polymer matrix to the electrochemical interface, and the methyl viologen redox couple is reduced ...
ArtikelRecent Progress in Polymer Waste‐Derived Porous Carbon for Supercapacitorsvon Song Wang et al. · 21.09.2023 In this paper, the PWCM electrode prepared from polymer wastes in recent years was reviewed, and the effect of different preparation methods on the electrode performance was compared. Abstract Due to the high power density, fast charging speed, an...
ArtikelStability of Bipolar Plate Materials for Proton‐Exchange Membrane Water Electrolyzers: Dissolution of Titanium and Stainless Steel in DI Water and Highly Diluted Acidvon Lena Fiedler et al. · 20.09.2023 We studied the stability of bipolar plate materials on-line. To mimic application-near conditions, we measured in deionized water and 0.5 mM H2SO4. For titanium, the dissolution is negligible, whereas for stainless steel 316L notable dissolution is ...
ArtikelPhotovoltaic Wafering Silicon Kerf Loss as Raw Material: Example of Negative Electrode for Lithium‐Ion Battery von Mads C. et al. · 18.09.2023 Kerf-loss powder from wafering of solar cells are characterized thoroughly and shown to consist of nanoscale crystallites in an amorphous matrix. The powders are analyzed for chemical composition, morphology, crystallinity, and finally the amorphous...
ArtikelLattice Tuning of Copper Single‐Crystal Surface for Electrochemical Carbon Monoxide Coupling Reaction: A Density Functional Theory Simulationvon Xia‐Guang Zhang et al. · 18.09.2023 The relationship between strain and reaction selectivity of CO reduction reaction on the deformation of Cu(111) and Cu(100) electrode surface have been studied by using the density functional theory calculation, *CHO and CO coupling is the favorable...
ArtikelElectrocatalytic Performance of Interconnected Self‐Standing Tin Nanowire Network Produced by AAO Template Method for Electrochemical CO2 Reduction von Dilan Er et al. · 12.09.2023 Interconnected-branched anodically oxidized tin nanowires: This electrode is produced via electrodeposition on aluminum anodic oxide (AAO) template followed by anodic oxidation. The electrode gave ~87 % Faradaic efficiency for formate with −14.55 mA...
ArtikelElectrocatalytic Reduction of (Hetero)Aryl Halides in a Proton‐Exchange Membrane Reactor and its Application for Deuterationvon Yosuke Ashikari et al. · 12.09.2023 We developed an electrocatalytic reduction of (hetero)aryl halides to substitute the halogeno groups to protons using a proton exchange membrane (PEM) reactor. Taking advantage of this transformation, deuterodehalogenation of (hetero)aryl bromides, ...
ArtikelSynthesis and Characterization of a Highly Electroactive Composite Based on Au Nanoparticles Supported on Nanoporous Activated Carbon for Electrocatalysisvon Giulia Moggia et al. · 08.09.2023 Electrocatalysis: Gold nanoparticles with diameter between 5 and 20 nm evenly distributed onto porous activated carbon (Norit) were obtained using a facile “one-pot” chemical synthesis technique with very high metal utilization. The AuNP/C nanocompo...
ArtikelRecent Progress on Carbon‐Based Electrocatalysts for Oxygen Reduction Reaction: Insights on the Type of Synthesis Protocols, Performances and Outlook Mechanismsvon Siyabonga Patrick et al. · 08.09.2023 This review explores carbon-based catalysts for oxygen reduction (ORR) in acidic and alkaline electrolytes, focusing on their mechanism, performance modulation strategies such as functionalization engineering, and doping strategies. Carbon-based mat...
ArtikelControlled Potential Electrolysis: Transition from Fast to Slow Regimes in Homogeneous Molecular Catalysis. Application to the Electroreduction of CO2 Catalyzed by Iron Porphyrinvon Rana Deeba et al. · 08.09.2023 The resting state of a homogeneous molecular catalyst during a controlled potential electrolysis depends on operational parameters (catalytic rate constant, cell dimensions and stirring rate). A formal description is given and illustrated through th...
ArtikelWater‐Abundant Electrolytes: Towards Safer and Greener Aqueous Zinc‐Metal Batteriesvon Long Qian et al. · 08.09.2023 This concept article aims to emphasize how to fabricate green and safe water-abundant Zn metal batteries. Several typical and advanced strategies towards water-abundant electrolyte systems are reviewed. We hope to arouse the attention of researchers...
ArtikelSodium Tetrakis(hexafluoroisopropyloxy)aluminates: Synthesis and Electrochemical Characterisation of a Room‐Temperature Solvated Ionic Liquidvon Darren M. et al. · 04.09.2023 Ionic liquids: Weakly coordinating anions find ubiquitous use in chemistry. This work details the synthesis of sodium tetrakis(hexafluoroisopropyloxy)aluminate, which when solvated by one dimethoxyethane solvent molecule forms a room-temperature sol...
ArtikelLaser‐Assisted Interfacial Engineering for High‐Performance All‐Solid‐State Batteriesvon Gyeongbeom Ryoo et al. · 04.09.2023 Laser-assisted interfacial engineering for improving the stability of all-solid-state batteries: The recent achievements of ultrafast pulsed laser ablation, selective laser sintering, laser-induced interlayers, and pulsed laser deposition technologi...
ArtikelHigh Salt Electrolyte Solutions Challenge the Electrochemical CO2 Reduction Reaction to Formate at Indium and Tin Cathodesvon Aykut Kas et al. · 04.09.2023 Electrochemical feeding of salt-loving microorganisms: Halophilic microorganisms are promising for bioproduction from formate. Electrochemical CO2 reduction to formate necessitates high reaction kinetics, selectivity, and overall efficiency in salin...
ArtikelBioengineered Lactate Oxidase Mutants for Enhanced Electrochemical Performance at Acidic pHvon Raul Garcia‐Morales et al. · 01.09.2023 Lactate oxidase was engineered by site-directed mutagenesis to improve the biosensor performance for lactate detection at low pH. After rational design to modulate the pKa of the catalytic His 265, the S175A variant showed higher sensitivity than th...
ArtikelSoluble Ruthenium Phthalocyanines as Semiconductors for Organic Thin‐Film Transistorsvon José García‐Calvo et al. · 01.09.2023 Ruthenium phtalocyanines (RuPcs) possess distinct photoelectronic properties and a broad synthetic scope allowing for highly tuneable molecular designs, making them promising candidates as organic semiconductors in OTFTs. However, RuPcs have been un...
ArtikelHigh Conductivity and Rate Capability of NaNb13O33 Wadsley–Roth Phase as a Fast‐Charging Li‐Ion Anodevon Jan L. et al. · 01.09.2023 The NaNb13O33 Wadsley–Roth structured phase is studied for enabling fast charging in Li-ion batteries. The material exhibits good lithium intercalation capacity of 233 mAh/g corresponding to Li15NaNb13O33 and rate capability. Multiple peaks are obse...
ArtikelMechanistic Investigations of Electrochemical Ethanol Oxidation Reaction by In Situ Raman Spectroscopyvon Jinchang Xu et al. · 31.08.2023 Electrochemical ethanol oxidation reaction: The reaction pathway significantly influences the overall performance of the electrochemical ethanol oxidation reaction (EOR), which can be effectively characterized through in situ Raman spectroscopy. In ...
ArtikelPreparation of Nitrogen‐Doped Graphene with Hollow Nano‐Hemispheres from FexOy@Fe‐N‐GN: Towards High Capacity and Durable Anode for Li‐Ion Batteries by Chemical Modificationsvon Edip Bayram et al. · 31.08.2023 Carbon-based anode: Nitrogen-doped graphene (N-GN), nitrogen-doped graphene-coated Fe x O y (Fe x O y @Fe-N-GN), and nitrogen-doped graphene with hollow nano-hemispheres (Fe-N-GN) were produced as anode materials for lithium ion batteri...
ArtikelQuantum Chemical Analysis of the Correlation between Electrode Potential and Redox Center of Li‐Insertion Materials: Olivine, Layered and Spinel Structures, and Aqua‐Complexesvon Kingo Ariyoshi et al. · 31.08.2023 The changes in net charge during the redox reaction indicated that the transition metal serves as the redox center in olivine materials and aqua-complexes, whereas the O atom serves as the redox center in oxide-based layered and spinel materials. A ...
ArtikelIn‐situ Construction of CNTs Decorated Titanium Carbide on Ti Mesh Towards the Synergetic Improvement of Energy Storage Properties for Aqueous Zinc Ion Capacitorsvon Hai Wang et al. · 31.08.2023 Schematic illustration of TiC/CNTs@Ti free-standing cathodes used in zinc ion capacitor with high capacity and long-term stability. Abstract The development of aqueous zinc-ion capacitors (ZICs) is an effective approach to improve the safety and e...
ArtikelNanofiller‐Based Novel Hybrid Composite Membranes for High‐Capacity Lithium‐Sulfur Batteriesvon Şeyma Dombaycıoğlu et al. · 31.08.2023 Al2O3 reinforced Nafion/Aquivion hybrid composite membranes were prepared for Li−S battery applications. Forming a hybrid composite membrane with nano-Al2O3 increased the electrochemical capacity. 868 mAhg−1 discharge capacity and 63.8 % capacity re...
ArtikelRecent Advances of Aqueous Electrolytes for Zinc‐Ion Batteries to Mitigate Side Reactions: A Reviewvon Xuan Gao et al. · 29.08.2023 Key areas of electrolytes in zinc-ion batteries (ZIBs) requiring attention include understanding the mechanisms of side reactions and developing cost-effective, scalable manufacturing processes with readily available electrolytes materials. By effec...
ArtikelExploring the Synergistic Effects of Dual‐Layer Electrodes for High Power Li‐Ion Batteriesvon Jeremy I. et al. · 28.08.2023 A Li-ion battery electrode architecture which uses two different active materials in a layered configuration is investigated. The results surprisingly show that layered electrodes are superior to their blended (mixed) counterparts during high-rate (...
ArtikelModification of Conductive Carbon with N‐Coordinated Fe−Co Dual‐Metal Sites for Oxygen Reduction Reactionvon Saravanakumar Muthusamy et al. · 28.08.2023 Dual sites: Carbon black-supported, N-coordinated Fe−Co dual sites for the oxygen reduction reaction (ORR) were prepared from metal-coordinated polyurea aerogels. FeCoNC/BP outperformed commercial Pt/C in alkaline medium and had moderate ORR activit...
ArtikelAlkylamine‐Functionalized Carbon Supports to Enhance the Silver Nanoparticles Electrocatalytic Reduction of CO2 to COvon Francesco Mattarozzi et al. · 21.08.2023 Hydrophobicity and selectivity: The contact angle images (left) show the possibility to tune the hydrophobicity of carbon by changing the chain length of alkylamine functional groups. The CO2RR selectivity (right), produced by Ag nanoparticles (back...
ArtikelCa2V2O7 as an Anode‐Active Material for Lithium‐Ion Batteries: Effect of Conductive Additive and Mass Loading on Electrochemical Performancevon Leticia Trezecik et al. · 04.08.2023 Ca2V2O7 (CVO) used as an anode material in lithium-ion batteries develops cracks during cycling. These cracks improve contact with the electrolyte, promoting new electrochemical reactions, not only increasing the capacity over cycling but also leads...
ArtikelPreparation of 3‐D Porous Pure Al Electrode for Al‐Air Battery Anode and Comparison of its Electrochemical Performance with a Smooth Surface Electrodevon Osman Kahveci · 24.07.2023 3D-porous and smooth surface anodes for the Al-air battery: Al electrodes were produced with smooth and porous surfaces by salt casting. LSV analysis showed that the current density of the porous electrode was three times higher. EIS analysis gives ...
ArtikelGeopolymer Based Electrodes as New Class of Material for Electrochemical CO2 Reductionvon Jürgen Schuster et al. · 14.07.2023 Geoploymers for CO2 reduction: Geoploymers offer great potential for reducing CO2 emissions in the construction sector by replacing ordinary cement. Here, we successfully functionalized a geopolymer with tin and applied the hybrid material as an ele...
ArtikelSmartphone‐Assisted Electrochemical Sensor Based on Mg0.5Co2.5(PO4)2 and Carbon Black for Trace Bisphenol A Detectionvon Ouissal Salhi et al. · 02.05.2023 Sensing it: A simple and easy-to-use electrochemical sensor connected to a smartphone was designed for rapid and sensitive detection of bisphenol A (BPA) in water samples. By combining a nanocomposite of Mg0.5Co2.5(PO4)2 and carbon black on screen p...
