气候变化领域集成服务门户(CCPortal): Simultaneously optimized CO spillover and electronic structure of relay catalyst for efficient electrochemical C-C coupling

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DOI	10.1016/j.jcat.2024.115304
	Simultaneously optimized CO spillover and electronic structure of relay catalyst for efficient electrochemical C-C coupling
	Du, Haoyang; Li, Hongdong; Wu, Di; Nie, Nanzhu; Yang, Yu; Yang, Bo; Lai, Jianping; Wang, Lei
发表日期	2024
ISSN	0021-9517
EISSN	1090-2694
起始页码	429
卷号	429
英文摘要	Using renewable electricity to drive the catalytic conversion of CO2 into C2 products is an effective measure to combat climate change and mitigate the greenhouse effect. Since electrochemical CO2 reduction reaction involves multiple proton-electron transfer processes, the selectivity of products especially C2+ products remain undesirable, because it is difficult to optimize both the CO spillover and the electronic structure for an effective C-C coupling. In this study, by adjusting the distance between silver and copper(I) oxide nanoparticles, the CO spillover and the electronic structure of the relay catalyst are optimized simultaneously. Comparing with dissimilar distance, it is found that the relay catalyst with appropriate distance can obtains the best selectivity and activity of the C2 products in this system, with a Faradaic efficiency of 70.7 % at - 0.55 V (vs. RHE), remarkably, maintaining above 55 % from - 0.35 to - 0.95 V (vs. RHE). In situ infrared/Raman spectroscopy is used to characterize the intermediates during the reaction, proving that the high efficiency of CO spillover and optimized electronic structure together promote C-C coupling, which improves the selectivity of C2 products.
英文关键词	C-C coupling; CO spillover; Relay catalysis; Distance; CO 2 RR
语种	英语
WOS研究方向	Chemistry ; Engineering
WOS类目	Chemistry, Physical ; Engineering, Chemical
WOS记录号	WOS:001164008900001
来源期刊	JOURNAL OF CATALYSIS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/293966
作者单位	Qingdao University of Science & Technology; Qingdao University of Science & Technology
推荐引用方式 GB/T 7714	Du, Haoyang,Li, Hongdong,Wu, Di,et al. Simultaneously optimized CO spillover and electronic structure of relay catalyst for efficient electrochemical C-C coupling[J],2024,429.
APA	Du, Haoyang.,Li, Hongdong.,Wu, Di.,Nie, Nanzhu.,Yang, Yu.,...&Wang, Lei.(2024).Simultaneously optimized CO spillover and electronic structure of relay catalyst for efficient electrochemical C-C coupling.JOURNAL OF CATALYSIS,429.
MLA	Du, Haoyang,et al."Simultaneously optimized CO spillover and electronic structure of relay catalyst for efficient electrochemical C-C coupling".JOURNAL OF CATALYSIS 429(2024).