Surface Oxygen Injection in Tin Disulfide Nanosheets for Efficient CO2 Electroreduction to Formate and Syngas

Nano-Micro Letters

Qiquan Luo¹  Tong Liu²  Dan Wu²  Tao Yao²  Xinyi Shen²  Dong Liu²  Tao Ding²  Linlin Cao²  Sicong Wang²  Beibei Pang²  Xiaokang Liu²  Wei Zhang³  Lan Wang⁴  Tao Chen⁴  Wenkun Zhu⁵ 

[1] Institutes of Physical Science and Information Technology, Anhui University, 230601, Hefei, People’s Republic of China;National Synchrotron Radiation Laboratory, University of Science and Technology of China, 230029, Hefei, People’s Republic of China;National Synchrotron Radiation Laboratory, University of Science and Technology of China, 230029, Hefei, People’s Republic of China;School of Materials, Sun Yat-Sen University, 510275, Guangzhou, People’s Republic of China;National Synchrotron Radiation Laboratory, University of Science and Technology of China, 230029, Hefei, People’s Republic of China;State Key Laboratory of Environmentally Friendly Energy Materials, School of National Defense Science and Technology, Southwest University of Science and Technology, 621010, Mianyang, People’s Republic of China;State Key Laboratory of Environmentally Friendly Energy Materials, School of National Defense Science and Technology, Southwest University of Science and Technology, 621010, Mianyang, People’s Republic of China;

关键词: Oxygen injection;    Tin disulfide;    CO electroreduction;    Formate;    Syngas;   

DOI  :  10.1007/s40820-021-00703-6

来源: Springer

【 摘 要 】

tsA surface oxygen-injection strategy is proposed to synergistically modulate the electronic structure of the SnS2 nanosheets, thereby regulating the oxophilicity of the catalyst surface.The surface oxygen doping facilitates the CO2 activation and enhances the affinity for HCOO* species.The oxygen-injection SnS2 nanosheets exhibit a remarkable Faradaic efficiency of 91.6% for carbonaceous products with a current density of 24.1 mA cm−2 at -0.9 V vs RHE.

【 授权许可】

CC BY