globalchange  > 气候变化与战略
DOI: 10.1016/j.scib.2020.01.020
论文题名:
Synergy effects on Sn-Cu alloy catalyst for efficient CO2 electroreduction to formate with high mass activity
作者: Ye K.; Cao A.; Shao J.; Wang G.; Si R.; Ta N.; Xiao J.; Wang G.
刊名: Science Bulletin
ISSN: 20959273
出版年: 2020
卷: 65, 期:9
起始页码: 711
结束页码: 719
语种: 英语
中文关键词: 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
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
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/170126
Appears in Collections:气候变化与战略

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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

Recommended Citation:
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]. Science Bulletin,2020-01-01,65(9)
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