The role of water and cations in shaping electrified interfaces: Insights from Raman and FTIR spectroscopy

IF 7.9 2区化学 Q1 CHEMISTRY, PHYSICAL

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":null,"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":7.9000,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Current Opinion in Electrochemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2451910325000602","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

Abstract

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 in situ techniques uncover changes in water orientation and coordination during critical reactions like CO₂ 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.

查看原文本刊更多论文

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

详细了解水在电极/电解质界面的结构动力学对于破译和改善电催化剂的性能至关重要。本文综述了拉曼和傅立叶变换红外光谱在电化学条件下探测界面水的创新应用。超越传统方法，我们讨论了评估电解质成分和外部刺激（如光照射）对界面物质动力学影响的策略。这些原位技术揭示了在二氧化碳还原和氧气释放等关键反应中水的取向和配位的变化。在碱性环境中，阳离子显著影响界面动力学：它们的水合壳破坏氢键网络，调节水吸附、局部电场、质子输运和反应中间体的稳定性。先进的光谱技术创造性地应用于评估电解质、应用电位和/或辐照对水结构的影响，提供了新的见解，重塑了我们对带电界面的理解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Current Opinion in Electrochemistry Chemistry-Analytical Chemistry

CiteScore

14.00

自引率

5.90%

发文量

272

审稿时长

73 days

期刊介绍： The development of the Current Opinion journals stemmed from the acknowledgment of the growing challenge for specialists to stay abreast of the expanding volume of information within their field. In Current Opinion in Electrochemistry, they help the reader by providing in a systematic manner: 1.The views of experts on current advances in electrochemistry in a clear and readable form. 2.Evaluations of the most interesting papers, annotated by experts, from the great wealth of original publications. In the realm of electrochemistry, the subject is divided into 12 themed sections, with each section undergoing an annual review cycle: • Bioelectrochemistry • Electrocatalysis • Electrochemical Materials and Engineering • Energy Storage: Batteries and Supercapacitors • Energy Transformation • Environmental Electrochemistry • Fundamental & Theoretical Electrochemistry • Innovative Methods in Electrochemistry • Organic & Molecular Electrochemistry • Physical & Nano-Electrochemistry • Sensors & Bio-sensors •