▎ 摘　　要

The combination of a powerful CO2-enriching carrier and robust active component provides a new idea for the construction of efficient catalysts for electrocatalytic CO2 reduction. Herein, novel perforated nitrogen-rich graphene-like carbon nanolayers (PNGC) are prepared from biomass derivatives, which promotes the oriented deposition of In-doped Cu2(OH)3(NO3) nanosheet patches. A robust Cu-In/PNGC composite catalyst is then obtained via simple in-situ electrochemical reduction. Unsurprisingly, Cu- In/PNGC exhibits a CO Faradaic efficiency (FECO) of 91.3% and a remarkable CO partial current density (jCO) of 136.4 mA cm-2 at a moderate overpotential of 0.59 V for electrocatalytic CO2 reduction reaction (CO2RR). DFT calculations and experimental studies indicate that the strong carrier effect of PNGC makes PNGC carried Cu-In nanosheets improved the adsorption capacity of CO2 gas, reconfigured electronic structure, and reduced free energy of key intermediate formation, thereby the CO2 activation and conver- sion are promoted.(c) 2022 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by ELSEVIER B.V. and Science Press. All rights reserved.