气候变化领域集成服务门户(CCPortal): N-Bridged Co-N-Ni: New bimetallic sites for promoting electrochemical CO2reduction

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DOI	10.1039/d0ee03947k
	N-Bridged Co-N-Ni: New bimetallic sites for promoting electrochemical CO2reduction
	Pei J.; Wang T.; Sui R.; Zhang X.; Zhou D.; Qin F.; Zhao X.; Liu Q.; Yan W.; Dong J.; Zheng L.; Li A.; Mao J.; Zhu W.; Chen W.; Zhuang Z.
发表日期	2021
ISSN	17545692
起始页码	3019
结束页码	3028
卷号	14 期号:5
英文摘要	The electrochemical CO2 reduction reaction (CO2RR) is of importance for reducing global CO2 emissions. Herein, we reported a highly active CO2RR catalyst, namely Co-N-Ni/NPCNSs, which is considered as an advanced single-site catalyst with Co-N-Ni bimetallic sites connected by a N bridge between Co and Ni. The N-bridged Co-N-Ni bimetallic sites were confirmed by the X-ray absorption spectroscopy. The Co-N-Ni/NPCNSs catalyst shows a higher turnover frequency of 2049 h-1 at a low overpotential of 370 mV and CO faradaic efficiency of 96.4% compared to that of Co-N/NPCNSs (1205 h-1 and 61.5%) and Ni-N/NPCNSs (404 h-1 and 45.0%) with single Co-N4 and Ni-N4 sites, respectively. In situ synchrotron radiation Fourier transform infrared spectra and DFT calculations show that N-bridged Co-N-Ni bimetallic sites promote the formation of COOH* intermediates, thus accelerating CO2RR. © 2021 The Royal Society of Chemistry.
英文关键词	Carbon dioxide; Catalysts; Cobalt metallography; Nickel metallography; Synchrotron radiation; X ray absorption spectroscopy; CO2 emissions; CO2 reduction; DFT calculation; Faradaic efficiencies; Fourier transform infrared spectra; Overpotential; Single-site catalysts; Turnover frequency; Nickel compounds; absorption; carbon dioxide; catalysis; catalyst; chemical reaction; detection method; electrochemical method; reduction
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190680
作者单位	State Key Lab of Organic-Inorganic Composites, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, China; Center of Artificial Photosynthesis for Solar Fuels, School of Science, Westlake University, Hangzhou, 310024, China; Energy and Catalysis Center, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China; National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, China; Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Science, Beijing, 100049, China; Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing, 100124, China; College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241002, China
推荐引用方式 GB/T 7714	Pei J.,Wang T.,Sui R.,et al. N-Bridged Co-N-Ni: New bimetallic sites for promoting electrochemical CO2reduction[J],2021,14(5).
APA	Pei J..,Wang T..,Sui R..,Zhang X..,Zhou D..,...&Zhuang Z..(2021).N-Bridged Co-N-Ni: New bimetallic sites for promoting electrochemical CO2reduction.Energy & Environmental Science,14(5).
MLA	Pei J.,et al."N-Bridged Co-N-Ni: New bimetallic sites for promoting electrochemical CO2reduction".Energy & Environmental Science 14.5(2021).