文献类型：期刊文献

英文题名：Etching of cubic Pd@Pt in UiO-66 to obtain nanocages for enhancing CO2 hydrogenation

作者：Li, Lishuang[1];Pan, Xinbo[1];Lan, Dengpeng[2];Xu, Haitao[1];Ge, Jianping[2];Zhang, Huaqian[1];Zheng, Zhizhong[1];Liu, Jichang[1];Xu, Zhenliang[1];Liu, Jinku[3]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China;[2]East China Normal Univ, Shanghai Key Lab Green Chem & Chem Proc, Sch Chem & Mol Engn, Shanghai 200062, Peoples R China;[3]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China

年份：2021

卷号：19

外文期刊名：MATERIALS TODAY ENERGY

收录：;EI(收录号：20205009611423);WOS:【SCI-EXPANDED(收录号:WOS:000680687000018)】；

基金：The authors thank Shanghai Key Laboratory of Green Chemistry and Chemical Processes of East China Normal University and Research Center of Analysis and Test of East China University of Science and Technology for the help on transmission electron microscopy and ICP-AES analysis. The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China (No. 21371058, Grant 21878090) and Joint Fund by the National Natural Science Foundation of China and PetroChina (Project U1862204).

语种：英文

外文关键词：Nanocubes; Hollow metal; RWGS reaction; MOFs; Catalysis

摘要：In this study, the Zr-based metal-organic framework (MOF) catalysts Pd@UiO-66, Pd@Pt-Nps@UiO-66, and Pd@Pt-Ncs@UiO-66, were assembled. Core-shell Pd@Pt nanoparticles (NPs), in which cubic Pd NPs serve as the core for the epitaxial growth of Pt shells, were encapsulated into UiO-66 to obtain Pd@Pt-Nps@UiO-66, which were subjected to further etching to obtain Pd@Pt nanocages (NCs) in UiO-66. CO2 conversion and CO selectivity in reverse water-gas shift reaction with Pd@Pt-Ncs@UiO-66, Pd@Pt-Nps@UiO-66, and Pd@UiO-66 were 19.6% and 72.3%, 16.2% and 85.9%, and 15.6% and 52.3%, respectively. This proves that the cubic Pd@Pt-Ncs can enhance the CO2 hydrogenation and long-term stability. (C) 2020 Elsevier Ltd. All rights reserved.