Current Opinion in Electrochemistry最新文献

Single-atom catalysts for oxygen evolution reaction in acidic media

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2024-11-13 DOI: 10.1016/j.coelec.2024.101606

Jean Rouger, Sara Cavaliere, Frédéric Jaouen

引用次数: 0

Recent understanding on pore scale mass transfer phenomena of flow batteries: Theoretical simulation and experimental visualization 对流动电池孔隙尺度传质现象的最新认识：理论模拟和实验可视化

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2024-11-09 DOI: 10.1016/j.coelec.2024.101603

Xingyi Shi , Qixing Wu

{"title":"Recent understanding on pore scale mass transfer phenomena of flow batteries: Theoretical simulation and experimental visualization","authors":"Xingyi Shi , Qixing Wu","doi":"10.1016/j.coelec.2024.101603","DOIUrl":"10.1016/j.coelec.2024.101603","url":null,"abstract":"<div><div>The performance of flow batteries is critically influenced by mass, ion, and electron transport processes and electrochemical reactions within the heterogenous porous electrodes. Understanding these processes at the pore scale is essential because it is at this level that the fundamental mechanisms governing transport and reaction dynamics occur. However, investigating pore scale mass transfer phenomena presents significant challenges, including the complexity of resolving intricate pore geometries of electrodes and the opaque nature of the flow cells, which hinders in-operando visualization. This mini review aims to summarize recent advances in numerical modeling and experimental visualization of pore scale mass transfer phenomena in flow batteries. By highlighting the importance of pore scale insights, we provide key findings and propose future research directions that focus on advancing pore scale modeling and developing innovative experimental methods to achieve a deeper understanding of pore scale transport phenomena, which are vital for next-generation electrode designs.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"49 ","pages":"Article 101603"},"PeriodicalIF":7.9,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142719661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigating water structure and dynamics at metal/water interfaces from classical, ab initio to machine learning molecular dynamics 从经典、ab initio 到机器学习分子动力学，研究金属/水界面的水结构和动力学

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2024-11-08 DOI: 10.1016/j.coelec.2024.101605

Fei-Teng Wang , Jun Cheng

引用次数: 0

How simulations help better understand mechanism and design materials? Learning from aqueous zinc-ion batteries

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2024-11-07 DOI: 10.1016/j.coelec.2024.101600

Kun Zhang , Menglian Zheng

{"title":"How simulations help better understand mechanism and design materials? Learning from aqueous zinc-ion batteries","authors":"Kun Zhang , Menglian Zheng","doi":"10.1016/j.coelec.2024.101600","DOIUrl":"10.1016/j.coelec.2024.101600","url":null,"abstract":"<div><div>Aqueous zinc-ion batteries (AZIBs) have attracted widespread attention for large-scale energy storage. However, most of the practical phenomena assocaited with AZIBs can only be explained by using infinitely modified model theories; thus, the underlying mechanisms of reactions in the AZIBs remains challenging to characterize. The dynamic evolution in AZIBs' response to applied bias potentials makes it difficult to accurately observe the behavior with current techniques in a non-vacuum environment. In response, theoretical simulations have been widely conducted to investigate the mechanisms of reactions occurring in the AZIBs. These theoretical simulations can considerably improve the understanding of the fundamental mechanisms, and further guide the AZIBs development. Density functional theory (DFT) calculations, molecular dynamics (MD) simulations and COMSOL simulations are three common approaches in the literature, which correspond to atomic-scale, molecular-scale and mesoscale analyses, respectively. Here, we summarize the key insights gained from these simulations to date and present our perspective on future research directions within this field.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"49 ","pages":"Article 101600"},"PeriodicalIF":7.9,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142745608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Salt cavern redox flow battery: The next-generation long-duration, large-scale energy storage system 盐穴氧化还原液流电池：下一代长时间、大规模能源存储系统

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2024-11-07 DOI: 10.1016/j.coelec.2024.101604

Lyuming Pan , Manrong Song , Nimra Muzaffar , Liuping Chen , Chao Ji , Shengxin Yao , Junhui Xu , Weixiong Wu , Yubai Li , Jie Chen , Jiayou Ren , Bin Liu , Lei Wei

{"title":"Salt cavern redox flow battery: The next-generation long-duration, large-scale energy storage system","authors":"Lyuming Pan , Manrong Song , Nimra Muzaffar , Liuping Chen , Chao Ji , Shengxin Yao , Junhui Xu , Weixiong Wu , Yubai Li , Jie Chen , Jiayou Ren , Bin Liu , Lei Wei","doi":"10.1016/j.coelec.2024.101604","DOIUrl":"10.1016/j.coelec.2024.101604","url":null,"abstract":"<div><div>Large-scale, long-duration energy storage systems are crucial to achieving the goal of carbon neutrality. Among the various existing energy storage technologies, redox flow batteries have the potential to store a significant amount of energy. In the redox flow battery system, the above-ground electrolyte storage tanks are usually bulky and expensive. Underground salt caverns, which have a space of hundred-thousand cubic meters, are being explored as potential alternatives to conventional electrolyte tanks for storing electrolytes. The salt caverns possess high safety, large storage capacity, constant temperature, and low cost, making salt cavern redox flow batteries promising next-generation energy storage systems in the era of carbon neutrality. This study reviews the fundamental concepts and research progress of salt cavern redox flow batteries and explores recently proposed organic active substances under near-neutral pH conditions. Prospects of salt cavern redox flow batteries are summarized and analyzed.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"49 ","pages":"Article 101604"},"PeriodicalIF":7.9,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142701744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advancements in membrane-less electrolysis configurations: Innovations and challenges 无膜电解配置的进展：创新与挑战

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2024-11-06 DOI: 10.1016/j.coelec.2024.101602

K. Sravan Kumar , S. Mateo , A.R. de la Osa , P. Sánchez , A. de Lucas-Consuegra

{"title":"Advancements in membrane-less electrolysis configurations: Innovations and challenges","authors":"K. Sravan Kumar , S. Mateo , A.R. de la Osa , P. Sánchez , A. de Lucas-Consuegra","doi":"10.1016/j.coelec.2024.101602","DOIUrl":"10.1016/j.coelec.2024.101602","url":null,"abstract":"<div><div>Ionic conductive membranes have provided significant advantages in low-temperature water electrolysis configurations, but their poor stability and high cost have prompted researchers to develop various types of membrane-less electrolysis configurations of reduced design complexity and lower costs. This paper reviews recent studies in the field, comparing the results obtained with different approaches and critically advising about the main advantages and challenges to be overcome. Notable among these is the electrolyte flow-by strategy, which uses closely spaced planar electrodes and laminar flow to keep hydrogen and oxygen bubbles separated without a membrane. Various other approaches have also been investigated such as: flow-through electrodes, bubbles free gas diffusion electrodes, organic-assisted electrolysis process and microbial electrolysis cells. The different approaches discussed on the manuscript generates significant interest within the scientific community, offering an opportunity to simplify innovative electrolysis configurations addressing new scientific challenges associated with traditional electrolysis methods.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"49 ","pages":"Article 101602"},"PeriodicalIF":7.9,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142701788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Lithium oxalate-based lithium-carbon dioxide batteries with high energy efficiency 基于草酸锂的高能效二氧化碳锂电池

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2024-11-02 DOI: 10.1016/j.coelec.2024.101599

Xu Xiao , Zhuojun Zhang , Aijing Yan , Yasen Hao , Kai Sun , Peng Tan

引用次数: 0

Applications of model electrode for investigations of reaction and transport issues in proton exchange membrane water electrolyzer 应用模型电极研究质子交换膜水电解槽中的反应和传输问题

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2024-10-31 DOI: 10.1016/j.coelec.2024.101601

Congfan Zhao , Shu Yuan , Xiaojing Cheng , Fengdi Tu , Jingwei Zhou , Shuiyun Shen , Jiewei Yin , Xiaohui Yan , Junliang Zhang

引用次数: 0

Molecular copper catalysts for electro-reductive homocoupling of CO2 towards C2 compounds 用于 CO2 与 C2 化合物电还原同偶联反应的分子铜催化剂

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2024-10-23 DOI: 10.1016/j.coelec.2024.101598

Na Liu, Wen Ju, Robert Francke

{"title":"Molecular copper catalysts for electro-reductive homocoupling of CO2 towards C2 compounds","authors":"Na Liu, Wen Ju, Robert Francke","doi":"10.1016/j.coelec.2024.101598","DOIUrl":"10.1016/j.coelec.2024.101598","url":null,"abstract":"<div><div>The electrochemical CO<sub>2</sub> reduction reaction (eCO<sub>2</sub>RR) to multi-carbon products holds the potential to generate valuable building blocks for production of chemicals using renewable electricity, thereby diminishing the dependence on fossil feedstocks. The crucial mechanistic step in this process involves the electrochemical C–C coupling, primarily taking place on metallic Cu surfaces. However, these metallic surfaces pose mechanistic unclarities due to their structural complexity, leading to intricate mechanistic paths and difficulties in identifying the genuine catalytically active sites. In contrast, molecular catalysts with well-defined structures may offer distinctive active sites for the reaction, although their utilization remains relatively unexplored. Recent advancements in Cu-based organometallic structures have demonstrated significant potential for eCO<sub>2</sub>RR, particularly in C–C coupling toward C<sub>2</sub> products such as C<sub>2</sub>H<sub>4</sub> and C<sub>2</sub>H<sub>5</sub>OH. These developments are summarized and discussed herein, both in terms of catalyst development and mechanistic understanding.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"49 ","pages":"Article 101598"},"PeriodicalIF":7.9,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142701785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determination of the reaction orders for electrode reactions 确定电极反应的反应顺序

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2024-10-09 DOI: 10.1016/j.coelec.2024.101597

Er-Fei Zhen, Bing-Yu Liu, Dong-Chen Zhao, Jing-Zhe Zhu, Yan-Xia Chen

{"title":"Determination of the reaction orders for electrode reactions","authors":"Er-Fei Zhen, Bing-Yu Liu, Dong-Chen Zhao, Jing-Zhe Zhu, Yan-Xia Chen","doi":"10.1016/j.coelec.2024.101597","DOIUrl":"10.1016/j.coelec.2024.101597","url":null,"abstract":"<div><div>Information of reaction orders is prerequisite in unveiling the mechanism(s) of complex electrocatalytic reactions, which is of great help in benchmarking the intrinsic electrocatalytic performance and in establishing the structure–activity relationship. However, electrochemical reaction orders for only few electrocatalytic reactions have hitherto been unambiguously quantified, due to the complexities of the reaction themselves and the complexities of interfacial environments. The apparent reaction orders may depend on the coverage of the adsorbed reactant, reactive intermediates at the electrode interface, their adsorption behavior, the occurrence of parallel pathways as well as existence pre or postchemical reactions. In this short review, theories and methods used for determination of the reaction orders for electrode reactions are summarized and exemplified by taking hydrogen evolution/oxidation reaction (HER/HOR) and oxygen reduction reaction (ORR) under rotating disk electrode configuration as model reactions. Frequently encountered challenges in accurate determination the reaction orders for complex electrocatalytic reactions are discussed.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"48 ","pages":"Article 101597"},"PeriodicalIF":7.9,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142528394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0