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Hydrophobic Nitrogen-Doped Nanocarbon with Cu-Ni Alloy Sites as a Catalyst for CO2 Electroreduction

文献类型：期刊论文

作者Cao, Xian1,2; Hu, Yanna3; Hui, Di3; Zhang, Kai1,2; Chen, Shichao3; Wei, Lingzhi3; Ye, Chun1,2; Pan, Guoxing3; Hu, Lin1,2
刊名ACS APPLIED NANO MATERIALS
出版日期2024-07-10
卷号7
关键词CO2 electroreduction Cu-Ni alloy nitrogen-doped nanocarbon hydrophobicity synergistic effects wide potential window superiorselectivity toward CO
DOI10.1021/acsanm.4c02196
通讯作者Ye, Chun(cye927@hmfl.ac.cn) ; Pan, Guoxing(panguoxing@ahu.edu.cn) ; Hu, Lin(hulin@hmfl.ac.cn)
英文摘要The electrochemical reduction of CO2 to value-added fuels or chemicals is considered one of the most appealing routes to establish an artificial carbon cycle. In this regard, the design of catalysts with high activity and selectivity in a wide potential window is pursued. Herein, the Cu-Ni alloy/nitrogen-doped nanocarbon (Cu-Ni/NC) with hydrophobicity is synthesized for the electrochemical CO2 reduction reaction (CO2RR) through the thermal decomposition of metal-organic frameworks. In the H-cell, the Cu-Ni/NC displays superior selectivity toward CO with a Faradaic efficiency (FE) over 90% in a wide potential window from -0.7 to -1.2 V versus the reversible hydrogen electrode (RHE). Further, a high FECO of 98.8% and an impressive CO partial current density (j CO) of 27.6 mA cm(-2) were achieved at -1.1 V, superior to those of their single metal counterparts. The enhanced CO selectivity may be related to the hydrophobicity, which can suppress the competitive hydrogen evolution reaction. Moreover, in situ ATR-SEIRAS and density functional theory (DFT) calculations reveal that the synergistic effects via intermetal interaction on Cu-Ni(111) surface can facilitate the proton-coupled electron transfer process, and then well balance the formation of COOH* and the CO* desorption.
WOS关键词CARBON-DIOXIDE ; REDUCTION ; ELECTROCATALYST ; SELECTIVITY ; INTERFACES ; CONVERSION
资助项目National Natural Science Foundation of China[2021YFA1600202] ; National Natural Science Foundation of China (NSFC)[21972145] ; National Natural Science Foundation of China (NSFC)[12204002]
WOS研究方向Science & Technology - Other Topics ; Materials Science
语种英语
WOS记录号WOS:001279982700001
出版者AMER CHEMICAL SOC
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China (NSFC)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/137341]  
专题中国科学院合肥物质科学研究院
通讯作者Ye, Chun; Pan, Guoxing; Hu, Lin
作者单位1.Chinese Acad Sci, Anhui Key Lab Low Energy Quantum Mat & Devices, High Magnet Field Lab, HFIPS, Hefei 230031, Anhui, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
3.Anhui Univ, Inst Phys Sci & Informat Technol, Hefei 230601, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Cao, Xian,Hu, Yanna,Hui, Di,et al. Hydrophobic Nitrogen-Doped Nanocarbon with Cu-Ni Alloy Sites as a Catalyst for CO2 Electroreduction[J]. ACS APPLIED NANO MATERIALS,2024,7.
APA Cao, Xian.,Hu, Yanna.,Hui, Di.,Zhang, Kai.,Chen, Shichao.,...&Hu, Lin.(2024).Hydrophobic Nitrogen-Doped Nanocarbon with Cu-Ni Alloy Sites as a Catalyst for CO2 Electroreduction.ACS APPLIED NANO MATERIALS,7.
MLA Cao, Xian,et al."Hydrophobic Nitrogen-Doped Nanocarbon with Cu-Ni Alloy Sites as a Catalyst for CO2 Electroreduction".ACS APPLIED NANO MATERIALS 7(2024).

入库方式： OAI收割

来源：合肥物质科学研究院

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