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Updated: Jan 6, 2026
Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
Published on: April 10, 2018
Controlled cerium doping in In2O3 derived from an In-MOF to boost electrocatalytic CO2 reduction for selective
Shao-Xia Wang1, Fang-Fang Wang1, Wei-Yin Sun1
1Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China. sunwy@nju.edu.cn.
Abstract:
Utilizing electrocatalytic technology to convert CO2 into value-added carbon products contributes to establishing a carbon-neutral cycle and alleviating environmental pressure. However, developing electrocatalysts with high activity and selectivity remains a significant challenge. In this work, we designed a feasible strategy involving the use of an In-MOF as a sacrificial template, which was pyrolytically transformed into Ce-doped In2O3 with varying doping ratios via controlled Ce doping. The optimized Ce0.85-In2O3 catalyst demonstrated outstanding performance, achieving a high formate faradaic efficiency of 92.05% and a current density of -100.98 mA cm-2. Experimental results revealed that the abundant oxygen vacancies in the catalyst and electron transfer between the constituents synergistically enhanced catalytic activity and formate selectivity. In situ attenuated total reflectance surface enhanced infrared absorption spectroscopy (ATR-SEIRAS) tests validated that Ce-doped In2O3 facilitates the formation of key formate intermediates at lower applied potential. This work provides new insights for exploring the application of metal-doped MOF derivatives in the electrocatalytic CO2 reduction reaction.
