Current Opinion in Electrochemistry最新文献_第2页

In-situ high-throughput nanoelectrochemistry for battery characterization 原位高通量纳米电化学电池表征

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2025-05-03 DOI: 10.1016/j.coelec.2025.101693

Si-Min Lu, Jean-François Lemineur, Jean-Marc Noël, Frédéric Kanoufi

{"title":"In-situ high-throughput nanoelectrochemistry for battery characterization","authors":"Si-Min Lu, Jean-François Lemineur, Jean-Marc Noël, Frédéric Kanoufi","doi":"10.1016/j.coelec.2025.101693","DOIUrl":"10.1016/j.coelec.2025.101693","url":null,"abstract":"<div><div>A comprehensive understanding of dynamic structure–activity relationships in materials under operating conditions is essential for improving the efficiency, performance, and lifespan of rechargeable battery systems. Traditional characterization techniques struggle to capture real-time processes within the battery “black box.” The emergence of nanoelectrochemistry provides diverse <em>in-situ</em> and high-throughput toolkits for probing material dynamics at the electrode–electrolyte nanointerface. This review highlights two representative techniques, collision electrochemistry and scanning electrochemical cell microscopy, and demonstrates their ability to monitor transient mass transport and charge transfer kinetics in battery materials and interfaces at nanodomains with sub-millisecond resolution. Additionally, it explores the potential of high-resolution optical imaging to achieve nanoscale visualization of structural spatiodynamics at the single particle–electrolyte interface during charge/discharge over multiple time scales, ranging from milliseconds to hours. Finally, future advancements are envisioned to enable accelerated mechanistic insights, rational material design, and automated discovery of next-generation battery materials.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"51 ","pages":"Article 101693"},"PeriodicalIF":7.9,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143898642","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

Recent advances in all-iron flow batteries (AIFBs) 全铁液流电池的研究进展

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2025-05-01 DOI: 10.1016/j.coelec.2025.101702

Tiantian Lei , Yifeng Xu , Yao Li , Liyun Huang , Li Ma , Daiqiang Si , Kairui Wang , Fengmei Wang , Jiquan Liu , Lin Lei , Liping Cao , Ying Yang

引用次数: 0

The role of water and cations in shaping electrified interfaces: Insights from Raman and FTIR spectroscopy 水和阳离子在形成带电界面中的作用：来自拉曼和FTIR光谱的见解

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2025-04-28 DOI: 10.1016/j.coelec.2025.101701

Jéssica Alves Nogueira, Lucas Dias Germano, Leonardo Domenico De Angelis, Susana Inés Córdoba de Torresi

{"title":"The role of water and cations in shaping electrified interfaces: Insights from Raman and FTIR spectroscopy","authors":"Jéssica Alves Nogueira, Lucas Dias Germano, Leonardo Domenico De Angelis, Susana Inés Córdoba de Torresi","doi":"10.1016/j.coelec.2025.101701","DOIUrl":"10.1016/j.coelec.2025.101701","url":null,"abstract":"<div><div>A detailed understanding of the structural dynamics of water at the electrode/electrolyte interface is essential for deciphering and improving electrocatalyst performance. This review highlights innovative uses of Raman and Fourier Transform Infrared spectroscopy to probe interfacial water under electrochemical conditions. Moving beyond conventional approaches, we discuss strategies that evaluate the influence of electrolyte composition and external stimuli—such as light irradiation—on the dynamics of interfacial species. These <em>in situ</em> techniques uncover changes in water orientation and coordination during critical reactions like CO<sub>2</sub> reduction and oxygen evolution. In alkaline environments, cations significantly influence interfacial dynamics: their hydration shells disrupt hydrogen bonding networks, modulating water adsorption, local electric fields, proton transport, and the stabilization of reaction intermediates. The creative application of advanced spectroscopic techniques to evaluate the effects of electrolytes, applied potentials, and/or irradiation on water structure provides novel insights that are reshaping our understanding of the electrified interface.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"52 ","pages":"Article 101701"},"PeriodicalIF":7.9,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144089846","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

Measuring the flatband potential in 2D semiconductors: Pitfalls and a possible SECCM solution 测量二维半导体中的平带电位：陷阱和可能的SECCM解决方案

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2025-04-28 DOI: 10.1016/j.coelec.2025.101703

Ava R. Chard, Justin B. Sambur

{"title":"Measuring the flatband potential in 2D semiconductors: Pitfalls and a possible SECCM solution","authors":"Ava R. Chard, Justin B. Sambur","doi":"10.1016/j.coelec.2025.101703","DOIUrl":"10.1016/j.coelec.2025.101703","url":null,"abstract":"<div><div>The flatband potential (<em>V</em><sub>fb</sub>) is a critical parameter in semiconductor electrochemistry, defining the potential at which no excess charge exists at the semiconductor/electrolyte interface. It serves as a key reference for interpreting charge transfer kinetics and current–voltage behavior. However, conventional methods like Mott–Schottky analysis fail for atomically thin 2D materials due to the breakdown of the depletion approximation. This perspective examines the limitations of traditional <em>V</em><sub>fb</sub> measurements for 2D semiconductors and the experimental challenges that arise. To address these issues, we propose using scanning electrochemical cell microscopy (SECCM) to spatially resolve the potential of zero charge (<em>V</em><sub>pzc</sub>), equivalent to <em>V</em><sub>fb</sub>. This approach mitigates sample heterogeneity issues, such as pinholes or multilayer defects, and offers a pathway to more accurate electrochemical characterization. Ultimately, this method will enhance understanding of current–potential behavior in 2D materials, supporting the design of advanced systems for photoelectrocatalysis, energy conversion, and sensing.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"52 ","pages":"Article 101703"},"PeriodicalIF":7.9,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144083872","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

Operando methods for the elucidation of electrolyte effects in electrocatalysis 阐明电催化中电解质效应的操作方法

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2025-04-17 DOI: 10.1016/j.coelec.2025.101700

Kees E. Kolmeijer, Rik V. Mom

引用次数: 0

Effects of electrolyte cations on the oxygen evolution reaction 电解质阳离子对析氧反应的影响

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2025-04-16 DOI: 10.1016/j.coelec.2025.101697

Boqiang Chen, Dunwei Wang, Matthias M. Waegele

引用次数: 0

3D-printed thermoplastic sensors for electrochemical biosensing 用于电化学生物传感的3d打印热塑性传感器

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2025-04-15 DOI: 10.1016/j.coelec.2025.101699

Christos Kokkinos

引用次数: 0

Cation effects in electrochemical CO2 reduction 电化学CO2还原中的阳离子效应

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2025-04-14 DOI: 10.1016/j.coelec.2025.101698

Adnan Ozden , Yanwei Lum

{"title":"Cation effects in electrochemical CO2 reduction","authors":"Adnan Ozden , Yanwei Lum","doi":"10.1016/j.coelec.2025.101698","DOIUrl":"10.1016/j.coelec.2025.101698","url":null,"abstract":"<div><div>Electrochemical CO<sub>2</sub> reduction (CO<sub>2</sub>R) provides a pathway toward the sustainable production of chemicals. Recent catalyst- and system-level innovations have enabled electrosynthesis of multi-carbon products at practical productivities (>200 mA cm<sup>−2</sup>) and single-pass CO<sub>2</sub> conversion efficiencies (>80 %). However, practical CO<sub>2</sub>R requires high single product selectivity (>85 %) without compromising readily-achieved metrics. Coupling these metrics in a single system warrants clear understanding of the electrical double layer at the catalyst–electrolyte interface. Combining selective catalysts with cation effects can effectively tune CO<sub>2</sub>R kinetics at the catalyst–electrolyte interface. Here we overview recent progress and current understanding on the sophisticated nature of the cation effects and underscore critical parameters that influence cation distributions in the electrical double layer. We highlight the emerging characterization and computational approaches to elucidate cation effects on CO<sub>2</sub>R. Finally, we emphasize research directions through which cation effects could be coupled with other micro-reaction environment tuning strategies for further selectivity and efficiency improvements.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"51 ","pages":"Article 101698"},"PeriodicalIF":7.9,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143886949","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

Nanoconfined constructs for electrochemical aptamer-based in vivo biosensing 基于电化学适体体的体内生物传感纳米结构

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2025-04-11 DOI: 10.1016/j.coelec.2025.101695

Grayson F. Huldin , Junming Huang , Kaiyu X. Fu

{"title":"Nanoconfined constructs for electrochemical aptamer-based in vivo biosensing","authors":"Grayson F. Huldin , Junming Huang , Kaiyu X. Fu","doi":"10.1016/j.coelec.2025.101695","DOIUrl":"10.1016/j.coelec.2025.101695","url":null,"abstract":"<div><div>In the last two decades, electrochemical aptamer-based (EAB) sensors have grown rapidly due to their high sensitivity, good selectivity, excellent biocompatibility, and flexible architectures among the wide range of biosensing platforms. Yet, achieving continuous, long-term, and <em>in vivo</em> monitoring remains challenging due to obstacles like device miniaturization, signal amplification, and sensor stability. To tackle these hurdles, researchers are leveraging nanostructured electrodes, leading to new EAB designs with improved <em>in vivo</em> biosensing performance. This opinion provides a brief overview of the development and latest progress in nanoconfined constructs for EAB <em>in vivo</em> biosensing. We illustrate fundamental sensing principles, the various nanostructures being explored, and their respective advantages. These nanostructured EABs hold promise for applications spanning disease diagnostics, environmental surveillance, and food safety management. Finally, we address the persistent challenges EABs face and discuss potential future directions, offering insights into how these sensors can continue to evolve and foster more effective healthcare technologies.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"51 ","pages":"Article 101695"},"PeriodicalIF":7.9,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143895850","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

Expanding our view on active sites in electrocatalysis 拓展了我们对电催化活性位点的认识

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2025-04-11 DOI: 10.1016/j.coelec.2025.101692

Ana M. Gómez–Marín , Katrin F. Domke

{"title":"Expanding our view on active sites in electrocatalysis","authors":"Ana M. Gómez–Marín , Katrin F. Domke","doi":"10.1016/j.coelec.2025.101692","DOIUrl":"10.1016/j.coelec.2025.101692","url":null,"abstract":"<div><div>At the heart of electrocatalyst design and development lies the concept of active sites that are usually identified as those sites for adsorption where the conversion of interest occurs. However, electrochemical interfaces are complex systems where the exact structure and dynamics of interfacial species during a reaction greatly depend on the local reactive microenvironment, including co-adsorbates and solvent molecules, that may include structural transformations upon adsorption, the charge-transfer dynamics, and/or the <em>x,y</em> charge-induced electric field distribution. We review the concept of active sites in electrocatalysis within these lines in light of recent studies that point out the necessity to expand the still widely spread idea of quasi-static atomic-scale sites toward the picture of a dynamically reactive microenvironment: the active site can extend over several tens on nanometers due to surface structural transformations during the reaction, includes interdependent components such as electrode and electrolyte as well as target reactant geometric and electronic structures, and often spontaneously rearranges <em>during</em> the electrocatalytic reaction. Thus, to define optimal reactions conditions, the reactive microenvironment as a whole needs to be considered.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"51 ","pages":"Article 101692"},"PeriodicalIF":7.9,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143906726","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