ChemElectroChem最新文献_第3页

Electrochemical Conversion of Toluene Derivatives to Aromatic Nitriles Using Water (H2O) and Ammonia (NH3) 甲苯衍生物在水（H2O）和氨（NH3）催化下电化学转化为芳香族腈

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-09-04 DOI: 10.1002/celc.202500267

Sander Spittaels, Jef Vanhoof, Dirk E. De Vos

引用次数: 0

Toward Practical Quasi-Solid-State Batteries: Thin Lithium Phosphorous Oxynitride Layer on Slurry-Based Graphite Electrodes 迈向实用的准固态电池：浆料基石墨电极上的薄氧化氮化磷锂层

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-09-02 DOI: 10.1002/celc.202500180

Julia Cipo, Sandra Hansen, Tim Tjardts, Ulrich Schürmann, Christian Werlich, Nils Voß, Florian Ziegler, Ainura Aliyeva, Reinhard Mörtel, Thomas Strunskus, Lorenz Kienle, Andreas Würsig, Fabian Lofink

{"title":"Toward Practical Quasi-Solid-State Batteries: Thin Lithium Phosphorous Oxynitride Layer on Slurry-Based Graphite Electrodes","authors":"Julia Cipo, Sandra Hansen, Tim Tjardts, Ulrich Schürmann, Christian Werlich, Nils Voß, Florian Ziegler, Ainura Aliyeva, Reinhard Mörtel, Thomas Strunskus, Lorenz Kienle, Andreas Würsig, Fabian Lofink","doi":"10.1002/celc.202500180","DOIUrl":"https://doi.org/10.1002/celc.202500180","url":null,"abstract":"This study introduces a novel quasi-solid-state battery system as a proof of concept. A 55-nm solid-state electrolyte layer of lithium phosphorous oxynitride (LiPON) is deposited on slurry-based graphite electrodes and assembled against lithium metal to evaluate interfacial compatibility and electrochemical performance under controlled conditions. In contrast to thin-film quasi-solid-state batteries, this approach leverages a realistic electrode architecture, where LiPON adjusts to the rough surface of the slurry-cast graphite. By utilizing LiPON's dual functionality as both a solid-state electrolyte and a separator, the system eliminates the need for a conventional separator, while requiring only 5–10% of the liquid electrolyte used in equivalent systems. This design significantly reduces internal resistance and prevents contact loss during cyclic volume changes. Electrochemical analyses, including cyclic voltammetry, galvanostatic cycling, and impedance spectroscopy, demonstrate lithium intercalation stages consistent with those in liquid electrolyte-based systems, stable cycling behavior at room temperature and reduced electrode impedance of a few 10 Ω cm2. Furthermore, X-ray photoelectron spectroscopy and scanning transmission electron microscopy confirm the formation of a solid–liquid electrolyte interface and the structural integrity of LiPON, which enhances charge transfer and long-term stability. These findings highlight the potential of quasi-solid-state batteries for safer, more compact, and cost-effective energy storage solutions.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 20","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500180","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145297157","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

Front Cover: Synchronization of Emerging Materials and their Synthetic Strategies for Efficient Alkaline Water Splitting (ChemElectroChem 17/2025) 封面：用于高效碱水分解的新兴材料的同步化及其合成策略（ChemElectroChem 17/2025）

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-09-01 DOI: 10.1002/celc.70032

Dun Chan Cha, Chandan Kumar, Ashakiran Maibam, Sunghoon Yoo, Jaejun Park, Sumin Kim, Hayoung Kim, Thangjam Ibomcha Singh, Seunghyun Lee

引用次数: 0

Optimized Carbonization of Biomass-Derived Carbon Anodes for Stable and Long-Cycle Sodium-Ion Battery Performance 生物质碳阳极优化炭化钠离子电池稳定性和长周期性能

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-08-30 DOI: 10.1002/celc.202500195

Sherif Hegazy, Chandrasekar M. Subramaniyam, Ahmed Abdelrahim, Rafal Sliz, Tao Hu, Sari Tuomikoski, Ulla Lassi, Flaviano García-Alvarado, Varsha Srivastava

{"title":"Optimized Carbonization of Biomass-Derived Carbon Anodes for Stable and Long-Cycle Sodium-Ion Battery Performance","authors":"Sherif Hegazy, Chandrasekar M. Subramaniyam, Ahmed Abdelrahim, Rafal Sliz, Tao Hu, Sari Tuomikoski, Ulla Lassi, Flaviano García-Alvarado, Varsha Srivastava","doi":"10.1002/celc.202500195","DOIUrl":"https://doi.org/10.1002/celc.202500195","url":null,"abstract":"This study presents the synthesis of biomass-derived carbon-metal organic framework (C-MOF) using modified sawdust as a sustainable precursor and elucidates its electrochemical performance as an anode material for sodium-ion batteries (SIBs). Optimization at a pyrolysis temperature of 1000 °C with 7.5% catalyst concentration, C-MOF achieves a high surface area of 312 m−2 g−1 and electrical conductivity of 28 S cm−1, contributing to its long cycling electrochemical performance compared to commercial hard carbon (HC). The C-MOF delivers a maximum discharge capacity of 348.5 mAh g−1 at 25 mA g−1 and exhibits an outstanding cycling stability over 600 cycles with minimal degradation. Electrochemical techniques (cyclic voltammetry, impedance, and galvanostatic charge–discharge) reveal efficient sodium-ion intercalation and favorable ion diffusion characteristics within the porous C-MOF structure. These findings position C-MOF as a promising, sustainable, and long-standing anode material for advanced SIB applications, offering enhanced rate capability, durability, and effective sodium-ion kinetics.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 20","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500195","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145297594","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

Solvent-Enabled Selective Electrochemical Decarboxylative Acetoxylation of Fmoc-Protected Peptides fmoc保护肽的溶剂激活选择性电化学脱羧乙酰氧基化

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-08-29 DOI: 10.1002/celc.202500308

David M. Köpfler, Paul Hanselmann, Michaël Bersier, Clara Bovino, Ryan Littich, Simon Wagschal, Dominique M. Roberge, C. Oliver Kappe, David Cantillo

引用次数: 0

Visualization of the Oxygen Partial Pressure on the Gas Diffusion Layer inside a Polymer Electrolyte Fuel Cell during Cell Operation at Temperatures Higher than 100 °C 温度高于100°C时聚合物电解质燃料电池内部气体扩散层氧分压的可视化

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-08-29 DOI: 10.1002/celc.202500139

Christopher L. Schreiber, Anna M. Kapulwa, Sonja Blaseio, Hui Jing Cham, Mehtap Oezaslan, Junji Inukai

{"title":"Visualization of the Oxygen Partial Pressure on the Gas Diffusion Layer inside a Polymer Electrolyte Fuel Cell during Cell Operation at Temperatures Higher than 100 °C","authors":"Christopher L. Schreiber, Anna M. Kapulwa, Sonja Blaseio, Hui Jing Cham, Mehtap Oezaslan, Junji Inukai","doi":"10.1002/celc.202500139","DOIUrl":"https://doi.org/10.1002/celc.202500139","url":null,"abstract":"Physical and chemical parameters, such as temperature, water/hydrogen/oxygen partial pressures, are distributed inhomogeneous inside a polymer electrolyte fuel cell during the operation and have a large influence on its performance and durability. In this study, the oxygen partial pressure (p(O2)) is visualized in real-time/space using an oxygen-sensitive dye on the surface of the gas diffusion layer (GDL) during power generation at temperatures of 80, 100, and 110 °C using a 20 mm × 20 mm single cell with ten straight gas flow channels. p(O2) on the surface of the GDL is visualized for the first time at temperatures higher than 100 °C, desired especially for heavy-duty vehicle application, due to advantages such as less susceptibility to catalyst poisoning and the option to use smaller and lighter radiators. The oxygen partial pressure on the surface of the GDLs is monitored to be higher than the values expected from a simple model and decreased only slightly along the gas flow channel with increasing current densities. The work shows that high p(O2) on the surface of the GDL is due to the short gas flow channels and accumulating water/vapor inside the GDL and the catalyst layer limiting the gas diffusion.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 20","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500139","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145297631","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

Joint Partial Least Squares Modeling of Experimental and Computational Data for Electrolyte Prescreening in Lithium–Sulfur Batteries 锂硫电池电解液预筛选实验与计算数据的联合偏最小二乘建模

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-08-25 DOI: 10.1002/celc.202500256

Fritz Wortelkamp, Christian Wittekind, Lilli Busch, Simon Weidner, Ingo Krossing

{"title":"Joint Partial Least Squares Modeling of Experimental and Computational Data for Electrolyte Prescreening in Lithium–Sulfur Batteries","authors":"Fritz Wortelkamp, Christian Wittekind, Lilli Busch, Simon Weidner, Ingo Krossing","doi":"10.1002/celc.202500256","DOIUrl":"https://doi.org/10.1002/celc.202500256","url":null,"abstract":"Lithium–sulfur batteries have attracted great research interest due to the high theoretical capacity of sulfur of 1672 mAh g−1. However, they have various problems due to the shuttle current caused by molecular sulfur dissolving in the electrolyte. Hence, electrolyte design is a key focus when optimizing the batteries. This study investigates the relationship between cycling data and electrochemical properties measured with cyclovoltammetric measurements, shuttle current measurements, and impedance spectroscopy. Using the acquired data, a partial least squares model to screen solvent candidates in reference to these findings is introduced. This model is based on cycling data as well as density functional theory-calculated Conductor-like Screening Model for Real Solvents data of the solvents and (solvated) lithium–polysulfides. The usefulness of the converged method is demonstrated by using it to identify new possible electrolyte systems. A subset of ten selected electrolyte systems is evaluated experimentally and their performance is reported. One of those electrolytes, 1.4 M LiTFSI, in pimelonitrile solution and without any further additives, displays exceptional cycling stability already on the first attempt, reaching a state of health of 50% after 115 cycles and maintaining a Coulombic efficiency of close to 100% during the entire cycling procedure.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 19","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500256","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145228180","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

Using the Surface Oxide Reduction Method to Determine the Surface Area of Pd–Co Alloys 用表面氧化还原法测定Pd-Co合金的表面积

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-08-24 DOI: 10.1002/celc.202500217

Gregor Florian Böhm, Stefan Topolovec

引用次数: 0

Front Cover: Electrolyte-Dependent Electrode Potentials in Lithium–Sulfur Batteries (ChemElectroChem 16/2025) 封面：锂硫电池中电解依赖的电极电位（ChemElectroChem 16/2025）

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-08-21 DOI: 10.1002/celc.70031

Fritz Wortelkamp, Christian Wittekind, Lilli Busch, Ingo Krossing

引用次数: 0

Performance-Conscious Coadditive Approach for Enhancing Proton Exchange Membrane Durability: Roles of Tungsten Oxides and Cerium Ions 提高质子交换膜耐久性的性能敏感共添加剂方法：钨氧化物和铈离子的作用

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-08-21 DOI: 10.1002/celc.202500214

Kazuma Shinozaki, Naohiro Hoshikawa, Kyoko Tsusaka, Akitoshi Suzumura, Akihiro Shinohara, Shinya Morishita, Yuji Kamitaka, Kosuke Kitazumi, Naoki Kitano

{"title":"Performance-Conscious Coadditive Approach for Enhancing Proton Exchange Membrane Durability: Roles of Tungsten Oxides and Cerium Ions","authors":"Kazuma Shinozaki, Naohiro Hoshikawa, Kyoko Tsusaka, Akitoshi Suzumura, Akihiro Shinohara, Shinya Morishita, Yuji Kamitaka, Kosuke Kitazumi, Naoki Kitano","doi":"10.1002/celc.202500214","DOIUrl":"https://doi.org/10.1002/celc.202500214","url":null,"abstract":"To improve the chemical durability of proton exchange membrane fuel cells (PEMFCs) while imposing minimal performance penalties, the effects of simultaneously incorporating tungsten oxide (WOx) and cerium (Ce) ions into the membrane are evaluated. Open-circuit voltage (OCV) hold tests are conducted using Nafion membranes containing Ce ions alone, WOx alone, or both. The combination of Ce3+, a hydroxyl radical scavenger, and WOx, a hydrogen peroxide decomposition catalyst with high stability and immobility under acidic conditions, achieves a degradation suppression effect that is consistent with the product of their individual contributions. The distinct mitigation mechanisms of Ce ions and WOx are supported by ex situ H2O2 decomposition experiments and membrane molecular weight analysis. No marked initial performance loss is observed with WOx addition. These results indicate that the use of WOx allows for reduced Ce ion loading and that it mitigates negative effects associated with Ce ion mobility. The combined use of suppressants that target different degradation pathways presents a promising strategy for achieving high membrane durability with minimal performance tradeoffs.","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.202500214","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145228189","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