In situ Raman spectroscopic studies of CO2 reduction reactions: from catalyst surface structures to reaction
Dongao Zhang1, Xuan Liu1, Yu Zhao1
1College of Materials, College of Chemistry and Chemical Engineering, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Physical Science and Technology, Key Laboratory of High Performance Ceramics Fibers, Fujian Key Laboratory of Advanced Materials, College of Energy, Xiamen University Xiamen 361005 China zhanghua@xmu.edu.cn Li@xmu.edu.cn.
Abstract:
The electrochemical CO2 reduction reaction (eCO2RR) has gained widespread attention as an important technology for carbon cycling and sustainable chemistry. In situ Raman spectroscopy, due to its molecular structure, sensitive advantage and real-time monitoring capability, has become an effective tool for studying the reaction mechanisms and structure-performance relationships in eCO2RR. This article reviews recent advancements in the application of in situ Raman spectroscopy in eCO2RR research, focusing on its critical role in monitoring reaction intermediates, analyzing catalyst surface states, and optimizing catalyst design. Through systematic studies of different catalysts and reaction conditions, in situ Raman spectroscopy has revealed the formation and transformation pathways of various intermediates, deeply exploring their relationship with the active sites of the catalysts. Furthermore, the review discusses the integration of in situ Raman spectroscopy with other characterization techniques to achieve a more comprehensive understanding of the reaction mechanisms. Finally, we summarize the current challenges and opportunities in this research area and look ahead to the future applications of in situ Raman spectroscopy in the field of eCO2RR.
Related Concept Videos
01:20Raman Spectroscopy: Overview
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and...
01:26Raman Spectroscopy Instrumentation: Overview
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
02:50Catalysis