{"title":"The role of anions and additives in electrochemical CO2 reduction","authors":"Katharina Trapp, Jimun Yoo , Maria R. Lukatskaya","doi":"10.1016/j.coelec.2025.101707","DOIUrl":null,"url":null,"abstract":"<div><div>The electrochemical reduction of CO<sub>2</sub> (eCO<sub>2</sub>R) is governed by complex interactions at the electrode-electrolyte interface. Recent studies show that electrolyte species in the electrical double layer can strongly affect the CO<sub>2</sub> reduction activity and selectivity. While the role of cations in eCO<sub>2</sub>R is relatively well understood, recent studies show that anions and molecular additives can be equally influential. Here, we discuss how these species can facilitate eCO<sub>2</sub>R intermediate stabilization and suppress the hydrogen evolution reaction, enhancing the activity and selectivity of eCO<sub>2</sub>R.</div></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"52 ","pages":"Article 101707"},"PeriodicalIF":6.9000,"publicationDate":"2025-05-10","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/S2451910325000663","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
The electrochemical reduction of CO2 (eCO2R) is governed by complex interactions at the electrode-electrolyte interface. Recent studies show that electrolyte species in the electrical double layer can strongly affect the CO2 reduction activity and selectivity. While the role of cations in eCO2R is relatively well understood, recent studies show that anions and molecular additives can be equally influential. Here, we discuss how these species can facilitate eCO2R intermediate stabilization and suppress the hydrogen evolution reaction, enhancing the activity and selectivity of eCO2R.
CO2 (eCO2R)的电化学还原是由电极-电解质界面复杂的相互作用控制的。近年来的研究表明,电双层中电解质的种类对CO2的还原活性和选择性有很大的影响。虽然阳离子在eCO2R中的作用已经得到了很好的理解,但最近的研究表明,阴离子和分子添加剂也可能具有同样的影响。本文探讨了这些物种如何促进eCO2R的中间稳定和抑制析氢反应,从而提高eCO2R的活性和选择性。
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 •