ChemElectroChem最新文献_第4页

Recent Advances In Low- and Nonnoble Metal Catalysts for Acidic Oxygen Evolution Reaction 酸性析氧反应中低贵金属和非贵金属催化剂的研究进展

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-08-21 DOI: 10.1002/celc.202500249

Xinye Zhang, Mengtian Huo, Zihao Xing, Siyuan Zhu, Jinfa Chang

{"title":"Recent Advances In Low- and Nonnoble Metal Catalysts for Acidic Oxygen Evolution Reaction","authors":"Xinye Zhang, Mengtian Huo, Zihao Xing, Siyuan Zhu, Jinfa Chang","doi":"10.1002/celc.202500249","DOIUrl":"https://doi.org/10.1002/celc.202500249","url":null,"abstract":"Water electrolysis technology is a core pathway for green hydrogen production and plays a crucial role in enabling efficient storage and conversion of clean energy. Among electrolysis systems, proton exchange membrane water electrolyzers (PEMWEs) are ideal for large-scale hydrogen production due to their high current density, rapid response characteristics, and high-purity hydrogen output. However, the acidic oxygen evolution reaction (OER) at the anode remains a key bottleneck in PEMWEs cost and lifetime due to its sluggish kinetics, high overpotential, and heavy reliance on noble metal-based catalysts (Ir and Ru). Developing highly active, low-cost, and durable acidic OER electrocatalysts is essential for reducing electrolyzer energy consumption and advancing the green hydrogen economy. This review systematically examines advancements in acidic OER catalysts over the past five years, focusing on fundamental mechanistic insights, advanced low-loading noble metal-based catalysts, and progress in nonnoble metal-based catalyst design. An outlook on future directions for acidic OER research, emphasizes mechanistic studies and electrocatalyst design strategies to overcome current challenges.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 19","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500249","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145228232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Beyond Conventional Coatings: Melt-Infiltration of Antiperovskites for High-Voltage All-Solid-State Batteries 超越传统涂层：高压全固态电池用反钙钛矿熔融渗透

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-08-21 DOI: 10.1002/celc.202500286

Philip Henkel, Ruizhuo Zhang, Rajib Sahu, Christian Kübel, Jürgen Janek, Aleksandr Kondrakov, Torsten Brezesinski

{"title":"Beyond Conventional Coatings: Melt-Infiltration of Antiperovskites for High-Voltage All-Solid-State Batteries","authors":"Philip Henkel, Ruizhuo Zhang, Rajib Sahu, Christian Kübel, Jürgen Janek, Aleksandr Kondrakov, Torsten Brezesinski","doi":"10.1002/celc.202500286","DOIUrl":"https://doi.org/10.1002/celc.202500286","url":null,"abstract":"Solid-state batteries (SSBs) have emerged as promising candidates for next-generation energy-storage solutions, particularly for electric vehicle applications. To overcome challenges related to interfacial stability and electro-chemo-mechanical degradation during operation, the development of protective surface coatings for cathode active materials (CAMs) is essential. Lithium-rich antiperovskites (LiRAPs) exhibit a unique set of beneficial properties, notably a high ionic partial conductivity at room temperature, enabling the deployment of advanced coating techniques via cost-effective and environmentally benign methods. In the present work, the application of LiRAP coatings to a layered Ni-rich CAM, namely LiNi0.85Co0.1Mn0.05O2 (NCM85), is examined, utilizing a low-temperature and solvent-free approach. The effectiveness of the procedure is evaluated through microscopy analyses and electrochemical performance assessments. The results demonstrate a significant improvement in cyclability, highlighting the potential of LiRAP-based surface coatings for enhancing the performance and longevity of high-capacity cathodes in SSB systems.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 19","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500286","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145228233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modeling Dynamic Electrochemical Impedance Spectroscopy Using a Linearization Technique 利用线性化技术建模动态电化学阻抗谱

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-08-20 DOI: 10.1002/celc.202500134

Cécile Pot d'or, Richard Chukwu, Doriano Brogioli, Fabio La Mantia

{"title":"Modeling Dynamic Electrochemical Impedance Spectroscopy Using a Linearization Technique","authors":"Cécile Pot d'or, Richard Chukwu, Doriano Brogioli, Fabio La Mantia","doi":"10.1002/celc.202500134","DOIUrl":"10.1002/celc.202500134","url":null,"abstract":"Herein, the physical modeling of dynamic electrochemical impedance spectroscopy using the example of a redox couple in solution is investigated. While the study of electrochemical systems during operation is of great interest, one is always confronted with challenges due to nonlinearities when exciting the system with both a cyclic voltammetry (CV) and a multisine. A two-component model is proposed, which first solves for the CV and then calculates the effect of the multisine by means of linearization around the CV of all the variables. Three models are tested: a dynamic transfer function model, a stationary transfer function model, and a quadrature band-pass filter model. The obtained impedance spectra are fitted using the regression analysis with Padé approximants and equivalent circuits. The results show that the dynamic transfer function model is very close to the experimental practice of obtaining dynamic impedance spectra through quadrature filters, and that stationarity has a significant effect on the impedance spectra in the low-frequency range.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 18","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500134","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145101929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Surficial Functionalization of Monolithic Carbon Electrode via Femtosecond Laser Treatment 单片碳电极飞秒激光表面功能化研究

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-08-20 DOI: 10.1002/celc.202500189

Yuxiao Ding, Thomas Gimpel, Alexander Klyushin, Sebastian Tigges, Yuying Dang, Michael Poschmann, Feihong Song, Robert Schlögl, Saskia Heumann

{"title":"Surficial Functionalization of Monolithic Carbon Electrode via Femtosecond Laser Treatment","authors":"Yuxiao Ding, Thomas Gimpel, Alexander Klyushin, Sebastian Tigges, Yuying Dang, Michael Poschmann, Feihong Song, Robert Schlögl, Saskia Heumann","doi":"10.1002/celc.202500189","DOIUrl":"https://doi.org/10.1002/celc.202500189","url":null,"abstract":"Carbon materials are promising to fulfill the worldwide need for advanced materials in many areas, particularly in electrochemical applications. However, achieving both high conductivity and surface functionalization in carbon electrodes remains a significant challenge. Herein, a scalable, sustainable, binder-free carbon disc electrode is developed in the desired size and shape. Subsequent femtosecond laser treatment introduces surface functionalization with pyrrolic and pyridinic nitrogen species (up to 12.6 at%, as determined by X-ray photoelectron spectroscopy) while preserving the bulk crystallinity and conductivity of the electrode. The laser-treated surfaces exhibit superhydrophilicity (water contact angle of 0°) and oleophilicity (0° for n-heptane, 25° for n-heptadecane), enabling enhanced interaction with electrolytes and anchoring of metal species like iron ions. Electrochemical impedance spectroscopy confirms minimal resistance (≤10 Ω) in 0.1M KOH, even after functionalization. The functionalized electrodes demonstrate improved stability in oxygen evolution reaction tests, with laser-treated samples showing 300–500 mV higher activity than untreated counterparts when Fe-impregnated. This work establishes a simple, industrial-scale method for creating multifunctional carbon electrodes with tailored surface properties, bridging the gap between material sustainability and electrochemical performance.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 19","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500189","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145228229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Designing a Silicon-Dominant Anode with Graphitic Carbon Coating from Biomass for High-Capacity Li-Ion Batteries 高容量锂离子电池用生物质石墨碳涂层硅为主阳极的设计

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-08-19 DOI: 10.1002/celc.202500119

Siri Gani, Axel Schönecker, Esmaeil Adabifiroozjaei, Leopoldo Molina-Luna, Elias Vollert, Vittorio Marangon, Dominic Bresser, Anke Weidenkaff, Magdalena Graczyk-Zajac, Ralf Riedel

{"title":"Designing a Silicon-Dominant Anode with Graphitic Carbon Coating from Biomass for High-Capacity Li-Ion Batteries","authors":"Siri Gani, Axel Schönecker, Esmaeil Adabifiroozjaei, Leopoldo Molina-Luna, Elias Vollert, Vittorio Marangon, Dominic Bresser, Anke Weidenkaff, Magdalena Graczyk-Zajac, Ralf Riedel","doi":"10.1002/celc.202500119","DOIUrl":"10.1002/celc.202500119","url":null,"abstract":"Silicon-carbon (Si/C) composites are extensively studied as anode materials for lithium-ion batteries (LIBs), with carbon typically sourced from biomass precursors or petroleum byproducts to produce amorphous and graphitic carbon, respectively. However, the use of iron salt as an “activator” to induce graphitization in combination with silicon remains unexplored. In this study, biomass-derived carbon is graphitized using an Fe salt activator to evaluate its effectiveness as a silicon coating for high-capacity anodes. Structural analysis via X-ray diffraction, Raman spectroscopy, and transmission electron microscopy reveals the formation of graphite, predominantly in the form of carbon nanotubes. Electrochemical performance is assessed in both half-cell and full-cell configurations, demonstrating the presence of “activated” graphite enhances reversible capacity, electronic conductivity, and cycle life. These findings highlight low-temperature Fe-assisted graphitization of biomass-derivedcarbon as a promising approach for developing high-performance LIB anodes.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 17","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500119","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144927738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Operando Acoustic Spectroscopy for Optimizing Gas Evolution In Hydrogen Evolution Reaction and the Oxygen Evolution Reaction Processes 在析氢和析氧反应过程中优化气体演化的Operando声光谱

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-08-15 DOI: 10.1002/celc.202500215

Christopher Kent, Alex Knowles, Ailbe Ó Manacháin, Colm O’Dwyer, Dara Fitzpatrick

{"title":"Operando Acoustic Spectroscopy for Optimizing Gas Evolution In Hydrogen Evolution Reaction and the Oxygen Evolution Reaction Processes","authors":"Christopher Kent, Alex Knowles, Ailbe Ó Manacháin, Colm O’Dwyer, Dara Fitzpatrick","doi":"10.1002/celc.202500215","DOIUrl":"https://doi.org/10.1002/celc.202500215","url":null,"abstract":"The use of earth-abundant materials for novel electrodes for solar-driven electrolysis will play a significant role in the future production of hydrogen as a green energy source. The choice of electrolyte will play a major role in how efficient and stable future photoelectrochemical cells (PEC) operate. A new approach to determining PEC efficiency using broadband acoustic resonance dissolution spectroscopy (BARDS) is investigated to analyze the real-time production of hydrogen and oxygen at platinum electrodes in different electrolyte solutions. The parameters investigated include concentration of electrolyte, surface area of the electrode, and the potential applied to the cell. Herein, the suitability of neutral buffer as an electrolyte on a par with either acid or basic electrolytes is shown. This finding allows for the potential design of solar to hydrogen electrolysers which can operate under mild, neutral, and stable conditions using earth-abundant materials for hydrogen production. It is also shown how BARDS can readily visualize and track gas evolution in real-time and in situ in an open system without the need for gas collection. It is anticipated that the technique can be utilized in the future evaluation of newly developed electrode materials in terms of efficiency, stability, and life span.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 19","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500215","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145228175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Controlling and Understanding the Impact of Closed Pore Size on Sodium Storage in Hard Carbons via Controlled Pyrolysis of Molecular Precursors 通过分子前体热解控制和理解封闭孔径对硬碳中钠储存的影响

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-08-11 DOI: 10.1002/celc.202500241

Ulrich Haagen, Seyedrashid Mirmasoomi, Kai Hetze, Sijia Cao, Yan Lu, Konstantin Schutjajew, Martin Oschatz

{"title":"Controlling and Understanding the Impact of Closed Pore Size on Sodium Storage in Hard Carbons via Controlled Pyrolysis of Molecular Precursors","authors":"Ulrich Haagen, Seyedrashid Mirmasoomi, Kai Hetze, Sijia Cao, Yan Lu, Konstantin Schutjajew, Martin Oschatz","doi":"10.1002/celc.202500241","DOIUrl":"10.1002/celc.202500241","url":null,"abstract":"Hard carbon is the most widely applied material for sodium-ion battery negative electrodes. Although capacities comparable to those of lithium/graphite can be achieved, the underlying sodium storage mechanisms remain poorly understood. From a simplified perspective, a two-step process is commonly observed: first, sodium adsorbs to the polar sites of the carbon (“sloping region”) and then fills the small voids in the material (“plateau region”). In order to study the impact of the molecular size of precursors on the microstructure of carbon materials and their pore geometry, a systematic series of cyclodextrin-based hard carbons has been synthesized. It is found that the type of precursors used influences the resulting materials’ pore structure, which at higher temperatures can be converted to a closed pore system. This pore conversion enables a large, low-potential sodiation plateau. Indeed, up to 75% of the total capacity is measured at potentials below 0.1 V versus Na+/Na. Additionally, the plateau region can be extended by up to 16% by additionally considering reversible capacity below 0 V versus Na+/Na, which means quasimetallic sodium can be stabilized within such structural motifs. Finally, gas physisorption measurements are related to charge–discharge data to identify the architecture of pores relevant to energy storage.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 17","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500241","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144927132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Designs and Materials of Electrodes for Electrochemical Sensors 电化学传感器电极的设计与材料

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-08-11 DOI: 10.1002/celc.202500230

Pierre J. Obeid, Nouha Sari-Chmayssem, Paolo Yammine, Doris Homsi, Hanna El-Nakat, Zeinab Matar, Soumaya Hamieh, Diala Koumeir, Ayman Chmayssem

{"title":"Designs and Materials of Electrodes for Electrochemical Sensors","authors":"Pierre J. Obeid, Nouha Sari-Chmayssem, Paolo Yammine, Doris Homsi, Hanna El-Nakat, Zeinab Matar, Soumaya Hamieh, Diala Koumeir, Ayman Chmayssem","doi":"10.1002/celc.202500230","DOIUrl":"https://doi.org/10.1002/celc.202500230","url":null,"abstract":"Electrode material selection and structural designs of electrochemical chips are fundamental parameters in the field of electrochemical sensing. These parameters directly affect sensor conductivity, selectivity, stability, surface area, and overall performance. This article summarizes the most common electrode architectures and commercially available materials currently used in the development of electrochemical sensors, including carbon-based materials (e.g., boron-doped diamond, graphite, graphene, glassy carbon, carbon nanotubes, and carbon fibers), metal-based materials and alloys (e.g., gold, platinum, silver, nickel, and metal oxides), conductive polymers (e.g., polyaniline, polypyrrole, and poly(3,4-ethylenedioxythiophene)), and redox dyes and mediators (Prussian blue, Meldola blue, etc.). It highlights the advantages of each category and identifies suitable electrode materials for specific target analytes. Finally, this review aims to guide readers in selecting appropriate electrode materials and designs tailored to a specific application.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 19","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500230","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145228065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Electrochemical Shono Oxidation of N-Formylpyrrolidine: Mechanistic Insights from the Computational Ferrocene Electrode Model and Cyclic Voltammetry n -甲酰基吡咯烷的电化学顺氧化：从计算二茂铁电极模型和循环伏安法的机制见解

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-08-09 DOI: 10.1002/celc.202500202

Liana Savintseva, Paul Neugebauer, Dmitry I. Sharapa, Philipp Röse, Ulrike Krewer, Felix Studt

引用次数: 0

Statistical Approach to the Free-Energy Diagram of the Nitrogen Reduction Reaction on Mo2C MXene Mo2C MXene上氮还原反应自由能图的统计方法

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-08-06 DOI: 10.1002/celc.202500196

Diwakar Singh, Ebrahim Tayyebi, Kai S. Exner

{"title":"Statistical Approach to the Free-Energy Diagram of the Nitrogen Reduction Reaction on Mo2C MXene","authors":"Diwakar Singh, Ebrahim Tayyebi, Kai S. Exner","doi":"10.1002/celc.202500196","DOIUrl":"10.1002/celc.202500196","url":null,"abstract":"Accurate free-energy landscapes are essential for understanding electrocatalytic processes, especially those involving proton–coupled electron transfer. While density functional theory (DFT) is widely used to model such reactions, it often introduces significant errors in the computed free energies of gas-phase reference molecules, leading to inconsistencies in the derivation of the free-energy changes of the elementary reaction steps. This study presents and compares different correction schemes to address gas-phase DFT errors. Unlike conventional methods that rely on bond–order–based adjustments, this approach reconstructs the formation free energy of target molecules as a linear combination of theoretically determined formation free energies of carefully selected reference molecules. This framework ensures consistency across the reaction network while avoiding dependence on the bond order. This methodology applies to the nitrogen reduction reaction on Mo2C(0001) MXene using dispersion–corrected DFT calculations. The incorporation of gas-phase corrections significantly reshapes the free-energy profile and alters catalytic activity descriptors, including the largest free-energy span of the Gmax(U) descriptor. Findings highlight the importance of thermodynamic accuracy in computational electrocatalysis and provide a generalizable framework that improves the reliability of DFT-based predictions across a wide range of electrochemical systems for energy conversion and storage.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 17","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500196","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144927618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0