Abstract:

Copper-based catalysts are a kind of metal catalyst that can efficiently and deeply reduce CO₂ electrochemical reduction (CO₂RR) to multi-carbon hydrocarbons. The selectivity and Faraday efficiency of CO₂ electrochemical reduction largely depended on the structure of the catalyst. We improved the task-typical synthesis experiment of "preparation and content determination of calcium peroxide" from an inorganic chemistry experiment to a comprehensive research experiment, which combined the study of structure and morphology of Cu based catalysts for the application of CO₂RR. This comprehensive research experiment showed that the selectivity of different copper oxide catalysts for CO₂RR was significantly different. At the same time, the improved experiment is helpful to enhance the cultivation of students' core quality of chemistry, and more in line with the development of chemistry in the new era.

Key words: Electrochemical reduction of CO₂, Copper peroxide, Copper oxide, Comprehensive research experiment