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题名

Engineering Water Molecules Activation Center on Multisite Electrocatalysts for Enhanced CO2 Methanation

作者
通讯作者Su, Yaqiong; Li, Yadong
发表日期
2022-07-01
DOI
发表期刊
ISSN
0002-7863
EISSN
1520-5126
卷号144页码:12807-12815
摘要
ABSTRACT: The renewable energy-powered electrolytic reduction of carbon dioxide (CO2) to methane (CH4) using water as a reaction medium is one of the most promising paths to store intermittent renewable energy and address global energy and sustainability problems. However, the role of water in the electrolyte is often overlooked. In particular, the slow water dissociation kinetics limits the proton-feeding rate, which severely damages the selectivity and activity of the methanation process involving multiple electrons and protons transfer. Here, we present a novel tandem catalyst comprising Ir single-atom (Ir1)-doped hybrid Cu3N/Cu2O multisite that operates efficiently in converting CO2 to CH4. Experimental and theoretical calculation results reveal that the Ir1 facilitates water dissociation into proton and feeds to the hybrid Cu3N/Cu2O sites for the *CO protonation pathway toward *CHO. The catalyst displays a high Faradaic efficiency of 75% for CH4 with a current density of 320 mA cm-2 in the flow cell. This work provides a promising strategy for the rational design of high-efficiency multisite catalytic systems.
相关链接[来源记录]
收录类别
SCI ; EI
语种
英语
重要成果
NI期刊 ; NI论文 ; ESI热点 ; ESI高被引
学校署名
其他
资助项目
National Key R&D Program of China["2020YFA0710304","2018YFA0702003"] ; National Natural Science Foundation of China["22002185","21890383","21871159","22171157"] ; Science and Technology Key Project of Guangdong Province of China[2020B010188002] ; China Postdoctoral Science Foundation[2021M691749]
WOS研究方向
Chemistry
WOS类目
Chemistry, Multidisciplinary
WOS记录号
WOS:000826699200001
出版者
EI入藏号
20223312580004
EI主题词
Dissociation ; Electrocatalysts ; Electrolytes ; Electrolytic reduction ; Molecules
EI分类号
Ore Treatment:533.1 ; Electric Batteries and Fuel Cells:702 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Atomic and Molecular Physics:931.3
来源库
Web of Science
引用统计
被引频次[WOS]:83
成果类型期刊论文
条目标识符http://kc.sustech.edu.cn/handle/2SGJ60CL/356210
专题工学院_机械与能源工程系
作者单位
1.Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China
2.China Acad Space Technol, Qian Xuesen Lab Space Technol, Beijing 100094, Peoples R China
3.Xi An Jiao Tong Univ, Sch Chem, Xian Key Lab Sustainable Energy Mat Chem, State Key Lab Elect Insulat & Power Equipment, Xian 710049, Peoples R China
4.Wuhan Univ Technol, State Key Lab Adv Technol Mat Synthesis & Proc, Int Sch Mat Sci & Engn, Wuhan 430070, Peoples R China
5.Zhengzhou Univ, Henan Prov Ind Technol Res Inst Resources & Mat, Sch Mat Sci & Engn, Zhengzhou 450001, Peoples R China
6.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Key Lab Energy Convers & Storage Technol, Shenzhen 518055, Peoples R China
推荐引用方式
GB/T 7714
Chen, Shenghua,Zhang, Zedong,Jiang, Wenjun,et al. Engineering Water Molecules Activation Center on Multisite Electrocatalysts for Enhanced CO2 Methanation[J]. Journal of the American Chemical Society,2022,144:12807-12815.
APA
Chen, Shenghua.,Zhang, Zedong.,Jiang, Wenjun.,Zhang, Shishi.,Zhu, Jiexin.,...&Li, Yadong.(2022).Engineering Water Molecules Activation Center on Multisite Electrocatalysts for Enhanced CO2 Methanation.Journal of the American Chemical Society,144,12807-12815.
MLA
Chen, Shenghua,et al."Engineering Water Molecules Activation Center on Multisite Electrocatalysts for Enhanced CO2 Methanation".Journal of the American Chemical Society 144(2022):12807-12815.
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