Dimensional engineering of covalent organic frameworks derived carbons for electrocatalytic carbon dioxide reduction
Guojuan Liu,
Xuewen Li,
Minghao Liu,
Xiubei Yang,
Zhuangyan Guo,
Xinqing Chen,
Qing Xu,
Gaofeng Zeng,
Yue He
Affiliations
Guojuan Liu
CAS Key Laboratory of Low‐Carbon Conversion Science and Engineering Shanghai Advanced Research Institute (SARI) Chinese Academy of Sciences (CAS) Shanghai China
Xuewen Li
School of Chemical Engineering University of Chinese Academy of Sciences Beijing China
Minghao Liu
CAS Key Laboratory of Low‐Carbon Conversion Science and Engineering Shanghai Advanced Research Institute (SARI) Chinese Academy of Sciences (CAS) Shanghai China
Xiubei Yang
CAS Key Laboratory of Low‐Carbon Conversion Science and Engineering Shanghai Advanced Research Institute (SARI) Chinese Academy of Sciences (CAS) Shanghai China
Zhuangyan Guo
CAS Key Laboratory of Low‐Carbon Conversion Science and Engineering Shanghai Advanced Research Institute (SARI) Chinese Academy of Sciences (CAS) Shanghai China
Xinqing Chen
CAS Key Laboratory of Low‐Carbon Conversion Science and Engineering Shanghai Advanced Research Institute (SARI) Chinese Academy of Sciences (CAS) Shanghai China
Qing Xu
CAS Key Laboratory of Low‐Carbon Conversion Science and Engineering Shanghai Advanced Research Institute (SARI) Chinese Academy of Sciences (CAS) Shanghai China
Gaofeng Zeng
CAS Key Laboratory of Low‐Carbon Conversion Science and Engineering Shanghai Advanced Research Institute (SARI) Chinese Academy of Sciences (CAS) Shanghai China
Yue He
Shanghai Ninth People's Hospital Shanghai Jiao Tong University Shanghai China
Abstract Covalent organic frameworks (COFs) have been developed as the precursors to construct porous carbons for electrocatalytic systems. However, the influences of carbon dimensions on the catalytic performance are still underexplored. In this work, we have first constructed COF‐derived carbons by template‐synthesis strategy in different dimensions to catalyze the carbon dioxide reduction (CO2RR). By using different templates, the one‐dimensional (1D), two‐dimensional (2D), and three‐dimensional (3D) COF‐derived carbons have been employed to anchor Co‐porphyrin to form the Co‐N5 sites to catalyze CO2RR. The 1D catalyst templated by carbon nano tubes presents high binding ability of CO2, more defective sites, and higher electronic conductivity, resulting in a higher catalytic activity for CO2 and selectivity of CO than 2D and 3D carbon‐based catalysts. The 1D catalyst delivers the turnover frequency values of 1150 h−1 and the FECO of 94.5% at 0.7 V versus RHE, which is significantly better than those of 2D and 3D carbon‐based catalysts.
