Modification of the CuO electronic structure for enhanced selective electrochemical CO2 reduction to ethylene

Electrochemical carbon dioxide reduction reaction (CO 2 RR) can produce value-added hydrocarbons from renewable electricity, providing a sustainable and promising approach to meet dual-carbon targets and alleviate the energy crisis. However, it is still challenging to improve the selectivity and sta...

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Bibliographic Details
Published in:Nano research 2024-08, Vol.17 (8), p.7194-7202
Main Authors: Wu, Xin, Tong, Zhuang, Liu, Yunliang, Li, Yaxi, Cheng, Yuanyuan, Yu, Jingwen, Cao, Peng, Zhuang, Chunqiang, Shi, Qiuzhong, Liu, Naiyun, Liu, Xiang, Liang, Hongyu, Li, Haitao
Format: Article
Language:English
Subjects:
Adsorption
Atomic/Molecular Structure and Spectra
Biomedicine
Biotechnology
Carbon dioxide
Catalysts
Chemical precipitation
Chemical reduction
Chemistry and Materials Science
Compressive properties
Condensed Matter Physics
Copper oxides
Doping
Electrochemistry
Electrodes
Electronic structure
Electrons
Energy shortages
Engineering
Ethylene
Fourier transforms
Lattice strain
Materials Science
Microscopy
Modulation
Nanotechnology
Potassium
Research Article
Selectivity
Spectrum analysis
Strain analysis
Structural analysis
Zinc
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Summary:Electrochemical carbon dioxide reduction reaction (CO 2 RR) can produce value-added hydrocarbons from renewable electricity, providing a sustainable and promising approach to meet dual-carbon targets and alleviate the energy crisis. However, it is still challenging to improve the selectivity and stability of the products, especially the C 2+ products. Here we propose to modulate the electronic structure of copper oxide (CuO) through lattice strain construction by zinc (Zn) doping to improve the selectivity of the catalyst to ethylene. Combined performance and in situ characterization analyses show that the compressive strain generated within the CuO lattice and the electronic structure modulation by Zn doping enhances the adsorption of the key intermediate ⋆ CO, thereby increasing the intrinsic activity of CO 2 RR and inhibiting the hydrogen precipitation reaction. Among the best catalysts had significantly improved ethylene selectivity of 60.5% and partial current density of 500 mA·cm −2 , and the highest C 2+ Faraday efficiency of 71.47%. This paper provides a simple idea to study the modulation of CO 2 RR properties by heteroatom doped and lattice strain.
ISSN:1998-0124
1998-0000
DOI:10.1007/s12274-024-6708-0