Modification of the CuO electronic structure for enhanced selective electrochemical CO_(2) reduction to ethylene  

作　　者：Xin Wu Zhuang Tong Yunliang Liu Yaxi Li Yuanyuan Cheng Jingwen Yu Peng Cao Chunqiang Zhuang Qiuzhong Shi Naiyun Liu Xiang Liu Hongyu Liang Haitao Li 

机构地区：[1]Institute for Energy Research,School of Energy and Power Engineering,Jiangsu University,Zhenjiang 212013,China [2]Faculty of Materials and Manufacturing,Beijing University of Technology,Beijing 100124,China [3]Institute of Medicine&Chemical Engineering,Zhenjiang College,Zhenjiang 212013,China [4]Institute of Advanced Manufacturing and Modern Equipment Technology,School of Mechanical Engineering,Jiangsu University,Zhenjiang 212013,China

出　　处：《Nano Research》2024年第8期7194-7202,共9页纳米研究（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.52072152 and 51802126);the Jiangsu University Jinshan Professor Fund,the Jiangsu Specially-Appointed Professor Fund,Open Fund from Guangxi Key Laboratory of Electrochemical Energy Materials,Zhenjiang“Jinshan Talents”Project 2021,China PostDoctoral Science Foundation(No.2022M721372);“Doctor of Entrepreneurship and Innovation”in Jiangsu Province(No.JSSCBS20221197);the Postgraduate Research&Practice Innovation Program of Jiangsu Province(No.KYCX22_3645);Key Research and Development Program of Zhenjiang City(No.CG2023004).

摘　　要：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.

关 键 词：CO_(2) reduction heteroatom-doped lattice strain ethylene selectivity 

分 类 号：O64[理学—物理化学]