{"title":"In Situ/Operando Characterization Techniques of Electrochemical CO<sub>2</sub> Reduction.","authors":"Bjorn Hasa, Yaran Zhao, Feng Jiao","doi":"10.1146/annurev-chembioeng-101121-071735","DOIUrl":null,"url":null,"abstract":"<p><p>Electrocatalytic conversion of carbon dioxide to valuable chemicals and fuels driven by renewable energy plays a crucial role in achieving net-zero carbon emissions. Understanding the structure-activity relationship and the reaction mechanism is significant for tuning electrocatalyst selectivity. Therefore, characterizing catalyst dynamic evolution and reaction intermediates under reaction conditions is necessary but still challenging. We first summarize the most recent progress in mechanistic understanding of heterogeneous CO<sub>2</sub>/CO reduction using in situ/operando techniques, including surface-enhanced vibrational spectroscopies, X-ray- and electron-based techniques, and mass spectroscopy, along with discussing remaining limitations. We then offer insights and perspectives to accelerate the future development of in situ/operando techniques.</p>","PeriodicalId":8234,"journal":{"name":"Annual review of chemical and biomolecular engineering","volume":"14 ","pages":"165-185"},"PeriodicalIF":7.6000,"publicationDate":"2023-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Annual review of chemical and biomolecular engineering","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1146/annurev-chembioeng-101121-071735","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2023/3/8 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
引用次数: 0
Abstract
Electrocatalytic conversion of carbon dioxide to valuable chemicals and fuels driven by renewable energy plays a crucial role in achieving net-zero carbon emissions. Understanding the structure-activity relationship and the reaction mechanism is significant for tuning electrocatalyst selectivity. Therefore, characterizing catalyst dynamic evolution and reaction intermediates under reaction conditions is necessary but still challenging. We first summarize the most recent progress in mechanistic understanding of heterogeneous CO2/CO reduction using in situ/operando techniques, including surface-enhanced vibrational spectroscopies, X-ray- and electron-based techniques, and mass spectroscopy, along with discussing remaining limitations. We then offer insights and perspectives to accelerate the future development of in situ/operando techniques.
在可再生能源的驱动下，通过电催化将二氧化碳转化为有价值的化学品和燃料对实现碳净零排放起着至关重要的作用。了解结构-活性关系和反应机理对于调整电催化剂的选择性意义重大。因此，表征反应条件下催化剂的动态演化和反应中间产物是必要的，但仍具有挑战性。我们首先总结了利用原位/操作性技术（包括表面增强振动光谱、基于 X 射线和电子的技术以及质谱）从机理上理解异相 CO2/CO 还原反应的最新进展，并讨论了仍然存在的局限性。然后，我们提出了加快原位/操作性技术未来发展的见解和观点。
期刊介绍：
The Annual Review of Chemical and Biomolecular Engineering aims to provide a perspective on the broad field of chemical (and related) engineering. The journal draws from disciplines as diverse as biology, physics, and engineering, with development of chemical products and processes as the unifying theme.
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