题名 | Modulating electric field distribution by alkali cations for CO2 electroreduction in strongly acidic medium |
作者 | |
发表日期 | 2022-04-14
|
DOI | |
发表期刊 | |
ISSN | 2520-1158
|
卷号 | 5页码:268-276 |
摘要 | The reaction of carbon dioxide with hydroxide to form carbonate in near-neutral or alkaline medium severely limits the energy and carbon efficiency of CO2 electroreduction. Here we show that by suppression of the otherwise predominant hydrogen evolution using alkali cations, efficient CO2 electroreduction can be conducted in acidic medium, overcoming the carbonate problem. The cation effects are general for three typical catalysts including carbon-supported tin oxide, gold and copper, leading to Faradaic efficiency as high as 90% for formic acid and CO formation. Our analysis suggests that hydrated alkali cations physisorbed on the cathode modify the distribution of electric field in the double layer, which impedes hydrogen evolution by suppression of migration of hydronium ions while at the same time promoting CO2 reduction by stabilization of key intermediates. |
相关链接 | [来源记录] |
收录类别 | |
语种 | 英语
|
重要成果 | ESI高被引
; ESI热点
|
学校署名 | 其他
|
资助项目 | European Research Council[681292]
; NCCR Catalysis[180544]
; Foundation of Shenzhen Science, Technology and Innovation Commission[JCYJ20210324104414039]
; European Union Marie Sklodowska-Curie Individual Fellowships[891545]
; European Union[85144]
; Starting Grant of the Swiss National Science Foundation[155876]
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WOS研究方向 | Chemistry
|
WOS类目 | Chemistry, Physical
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WOS记录号 | WOS:000782532000001
|
出版者 | |
EI入藏号 | 20221611969920
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EI主题词 | Carbon dioxide
; Electric fields
; Hydrogen
; Positive ions
; Tin oxides
|
EI分类号 | Ore Treatment:533.1
; Electricity: Basic Concepts and Phenomena:701.1
; Chemical Reactions:802.2
; Chemical Products Generally:804
; Inorganic Compounds:804.2
|
来源库 | 人工提交
|
引用统计 |
被引频次[WOS]:279
|
成果类型 | 期刊论文 |
条目标识符 | http://kc.sustech.edu.cn/handle/2SGJ60CL/330470 |
专题 | 理学院_化学系 |
作者单位 | 1.Laboratory of Inorganic Synthesis and Catalysis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland. 2.Department of Chemistry, Southern University of Science and Technology, Shenzhen, China. 3.Laboratory of Renewable Energy Science and Engineering, Institute of Mechanical Engineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland. |
第一作者单位 | 化学系 |
推荐引用方式 GB/T 7714 |
Jun,Gu,Shuo,Liu,Weiyan,Ni,et al. Modulating electric field distribution by alkali cations for CO2 electroreduction in strongly acidic medium[J]. Nature Catalysis,2022,5:268-276.
|
APA |
Jun,Gu,Shuo,Liu,Weiyan,Ni,Wenhao,Ren,Sophia,Haussener,&Xile,Hu.(2022).Modulating electric field distribution by alkali cations for CO2 electroreduction in strongly acidic medium.Nature Catalysis,5,268-276.
|
MLA |
Jun,Gu,et al."Modulating electric field distribution by alkali cations for CO2 electroreduction in strongly acidic medium".Nature Catalysis 5(2022):268-276.
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条目包含的文件 | ||||||
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