文献类型：期刊文献

英文题名：Pt-Ni alloy nanobead chains catalysts embedded in UiO-67 membrane for enhanced CO2 conversion to CO

作者：Jiang, Dongjiang[1];Shi, Ying[2];Zhao, Guofeng[4];Gong, Xiaodi[3];Liu, Jichang[1];Lan, Dengpeng[4];Zhang, Lidong[2];Ge, Jianping[4];Fang, Huimin[1];Cheng, Denghui[1];Xu, Haitao[1]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China;[2]Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China;[3]Naval Med Univ, Changzheng Hosp, Dept Gynaecol & Obstet, Shanghai 200003, Peoples R China;[4]East China Normal Univ, Sch Chem & Mol Engn, Shanghai Key Lab Green Chem & Chem Proc, Shanghai 200062, Peoples R China

年份：2022

卷号：28

外文期刊名：MATERIALS TODAY ENERGY

收录：;EI(收录号：20222612295867);WOS:【SCI-EXPANDED(收录号:WOS:000822614200003)】；

基金：This work was supported by the financial support from Joint Fund by the National Natural Science Foundation of China and PetroChina (Project U1862204) , the National Natural Science Foundation of China (No. 21371058 and No. 22179038) , and the Special Project for Peak Carbon Dioxide Emissions-Carbon Neutrality (21DZ1206700) from the Shanghai Municipal Science and Technology Commission, China.

语种：英文

外文关键词：PtM (M=Ni, Co) alloy; MOFs membrane; Nanocable catalysts; Reverse water-gas shift reaction; CO2 hydrogenation

摘要：Fossil fuel depletion and carbon dioxide (CO2) emission have driven worldwide research on alternative processes for the production of commodity chemicals. The high-efficiency catalysts can convert CO2 into high value-added products. Herein, the nanocable catalysts Pt-Ni@UiO-67 were assembled using Pt-Ni alloy nanobead chains as core in UiO-67: a UiO-67 membrane growing along their outer edge. The nanocable structure can inhibit agglomeration and sintering of the nanobead chains to improve catalytic activity. The conversion of CO2 to CO reached 25.8% for Pt3Ni@UiO-67 with a 13.2 nm-UiO-67 membrane, 12.3% for physically mixed Pt3Ni/UiO-67, and 10.8% for Pt3Ni@UiO-67(52.1) with a 52.1 nm-UiO-67 membrane, demonstrating that an appropriate thickness of the UiO-67 membrane in Pt3Ni@UiO-67 can enhance CO2 conversion to CO. Density functional theory calculations suggested that high CO2 conversion is associated with highly dispersed Ni. This work provides a feasible strategy for improving catalyst performance. (c) 2022 Elsevier Ltd. All rights reserved.