Tuning CO2 electroreduction by facet-dependent metal-support interaction

被引：2
作者：
Li, Jinmeng [1 ]
Cheng, Zhixiang [1 ]
Zhu, Junpeng [1 ]
Chen, Hanxia [1 ]
Xu, Xiaoxue [1 ]
Wang, Yuheng [1 ]
Liu, Juzhe [1 ]
Xu, Zhongfei [1 ]
Wang, Lidong [1 ]
机构：
[1] North China Elect Power Univ, Coll Environm Sci & Engn, MOE Key Lab Resources & Environm Syst Optimizat, Beijing 102206, Peoples R China
来源：
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY | 2024年 / 352卷
基金：
中国国家自然科学基金;
关键词：
CO2RR; Metal-Support Interaction; Facet; Electron transfer; Stability; PERFORMANCE;
D O I：
10.1016/j.apcatb.2024.124049
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Electrochemical carbon dioxide reduction reaction (CO2RR) helps to build a sustainable carbon cycle system. The selectivity and stability of CO2RR catalysts can be tuned by manipulating Metal-Support Interaction (MSI). Here, we conducted a theoretical and experimental research on the interaction between Ag nanoparticles and diverse crystal faces of Cu2O. It was found the strong electron transfer from Ag to (100) facet of hexahedral Cu2O enabled the formation of charge-redistributed interface with positively charged Ag and negatively charged Cu2O, which was more favorable to the stability of integrated structure and CO2-to-CO catalytic process compared to Ag-decorated octahedral and dodecahedral Cu2O with exposed (111) and (110) facets, respectively. Consequently, the composite of Ag on hexahedral Cu2O exhibited an impressive CO Faradaic efficiency of 93%, surpassing Ag on octahedral and dodecahedral Cu2O as well as individual Ag and Cu2O nanoparticles. This work provides an effective avenue to tune CO2RR process by interface engineering.
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页数：10
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