InNi alloy-induced interface effect promoting the parallel electron transfer: improved photothermal catalytic CO2 hydrogenation

作     者：Haoyu Zhang Yu-Hang Li Yu Nie Xinyu Dou Haodong Ji Xin Tan Jinhua Ye Tao Yu 

作者机构：School of Chemical Engineering and Technology Tianjin University Eco-environment and Resource Efficiency Research Laboratory School of Environment and Energy Peking University Shenzhen Graduate School School of Environmental Science and Engineering Tianjin University Advanced Catalytic Materials Research Center School of Materials Science and Engineering Tianjin University Research Center for Solar Driven Carbon Neutrality Hebei University 

出 版 物：《Science China Chemistry》 (中国科学:化学(英文版))

年 卷 期：2025年第68卷第6期

页      面：2725-2734页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 

基　　金：supported by the National Key R&D Program of China (2021YFA1500704) the National Natural Science Foundation of China (22372116) 

主　　题：photothermal catalytic CO2 hydrogenation In2O3 InNi alloy alloy/semiconductor interface 

摘      要：Photothermal catalytic CO2hydrogenation is an effective means of utilizing carbon resources. However, it is severely limited in terms of kinetics and thermodynamics. Therefore, it is necessary to meticulously design catalysts to solve this problem. Herein, a sandwich structured Ni O@In Ni/In2O3is designed to intrinsically regulate the direction of photogenerated carriers transfer,resulting in a CO yield of 42.97 mmol g-1h-1(1290.3 μmol h-1) with a selectivity near to 100%. In Ni alloy favors the collection of photogenerated carriers by the parallel way and enhancement of the adsorption and activation of CO2molecules. NiO grown on the surface of In Ni alloy not only improves the adsorption of H2and provides sufficient H+for the reaction, but also makes In Ni alloy more stable during the reaction process. The photothermal effect caused by In2O3accelerates the transfer of photogenerated carriers and increases the surface temperature of the catalyst, thereby synergistically promoting the reaction from a kinetic perspective. This work ameliorates the kinetic and thermodynamic limitations of the photothermal catalytic CO2hydrogenation process through rationally designing the electron transfer direction of the sandwich structured catalysts to parallel way.