文献类型：期刊文献

英文题名：Enhanced sintering resistance of NiFe-based RWGS catalysts through Cu doping

作者：Wu, Jiayi[1];Zhang, Wenhao[1];Chen, Hecao[1];Yu, Weifeng[1];Sun, Bo[1];Zhu, Minghui[1];Han, Yi-Fan[1]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2024

卷号：14

期号：6

起止页码：1113

外文期刊名：GREENHOUSE GASES-SCIENCE AND TECHNOLOGY

收录：;EI(收录号：20244717412961);WOS:【SCI-EXPANDED(收录号:WOS:001359659400001)】；

基金：This work was supported by the National Key R & D Program of China (2022YFB3805504), National Natural Science Foundation of China (22078089), Shanghai Pilot Program for Basic Research (22TQ1400100-7), the Basic Research Program of Science and Technology Commission of Shanghai Municipality (22JC1400600).

语种：英文

外文关键词：CO2 hydrogenation; high temperature resistance; nickel-iron catalyst; RWGS; strong metal-support interaction

摘要：The reverse water-gas shift (RWGS) reaction offers an effective method for mitigating CO2 emissions. Due to its affordability and physicochemical stability, iron has garnered significant attention as a potential catalyst for RWGS. The incorporation of nickel and copper promoters can enhance CO2 conversion and CO selectivity in Fe-based catalysts. This study focuses on modifying the strength of the Strong Metal-Support Interaction (SMSI) through particle size optimization. Doping Cu into NiFe-based catalysts restricts particle size, which influences the curvature of the Ni-0@FeO(x )interface. This curvature enhances the electron coupling between Ni0 and FeOx, promoting the formation of a denser and thicker Ni-0 and FeOx layer. This results in a nearly 90% increase in the CO2 reaction rate during the sintering resistance test by anchoring Ni0 and facilitating electron transfer to active sites. Such morphological evolution improves high-temperature resistance to sintering during RWGS. (c) 2024 Society of Chemical Industry and John Wiley & Sons, Ltd.