气候变化领域集成服务门户(CCPortal): Synergy effects on Sn-Cu alloy catalyst for efficient CO2 electroreduction to formate with high mass activity

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DOI	10.1016/j.scib.2020.01.020
	Synergy effects on Sn-Cu alloy catalyst for efficient CO2 electroreduction to formate with high mass activity
	Ye K.; Cao A.; Shao J.; Wang G.; Si R.; Ta N.; Xiao J.; Wang G.
发表日期	2020
ISSN	20959273
起始页码	711
结束页码	719
卷号	65 期号:9
英文摘要	To acquire the synergy effects between Sn and Cu for the jointly high Faradaic efficiency and current density, we develop a novel strategy to design the Sn-Cu alloy catalyst via a decorated co-electrodeposition method for CO2 electroreduction to formate. The Sn-Cu alloy shows high formate Faradaic efficiency of 82.3% ± 2.1% and total C1 products Faradaic efficiency of 90.0% ± 2.7% at −1.14 V vs. reversible hydrogen electrode (RHE). The current density and mass activity of formate reach as high as (79.0 ± 0.4) mA cm−2 and (1490.6 ± 7.5) mA mg−1 at −1.14 V vs. RHE. Theoretical calculations suggest that Sn-Cu alloy can obtain high Faradaic efficiency for CO2 electroreduction by suppressing the competitive hydrogen evolution reaction and that the formate formation follows the path of CO2 → HCOO* → HCOOH. The stepped (2 1 1) surface of Sn-Cu alloy is beneficial towards selective formate production. © 2020 Science China Press
关键词	Electrochemical carbon dioxide reduction reaction Formate Mass activity Sn-Cu alloy Synergy effects
英文关键词	Binary alloys; Carbon dioxide; Catalysts; Copper alloys; Copper compounds; Efficiency; Electrodes; Electrolytic reduction; Hydrogen; Pollution control; Carbon dioxide reduction; Formate; Mass activity; Sn-Cu alloys; Synergy effect; Tin alloys
语种	英语
来源期刊	Science Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207271
作者单位	State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China; Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China; Shanghai Synchrotron Radiation Facility, Zhangjiang Laboratory, Shanghai, 201204, China
推荐引用方式 GB/T 7714	Ye K.,Cao A.,Shao J.,et al. Synergy effects on Sn-Cu alloy catalyst for efficient CO2 electroreduction to formate with high mass activity[J],2020,65(9).
APA	Ye K..,Cao A..,Shao J..,Wang G..,Si R..,...&Wang G..(2020).Synergy effects on Sn-Cu alloy catalyst for efficient CO2 electroreduction to formate with high mass activity.Science Bulletin,65(9).
MLA	Ye K.,et al."Synergy effects on Sn-Cu alloy catalyst for efficient CO2 electroreduction to formate with high mass activity".Science Bulletin 65.9(2020).