文献类型：期刊文献

英文题名：Synthesis of Alumina-Supported RhSn Alloy Nanocatalysts by Using Rh@Sn Core-Shell Nanoparticle Precursors for Toluene Catalytic Hydrogenation

作者：Zhang, Hang[1];Wang, Yuhua[1];Wang, Zizhu[1];Xu, Caiyun[1];Zhou, Shenghu[1]

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

年份：2023

卷号：62

期号：17

起止页码：6626

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20231814040104);WOS:【SCI-EXPANDED(收录号:WOS:000972668600001)】；

基金：This work was financially supported by the National Natural Science Foundation of China (grant nos. 22078099 and 21776090) .

语种：英文

外文关键词：Alumina - Aluminum oxide - Binary alloys - Core shell nanoparticles - Efficiency - Hydrogenation - Molar ratio - Nanocatalysts - Shells (structures) - Silver alloys - Synthesis (chemical) - Toluene

摘要：In this work, alumina-supported RhSn alloy nano catalysts were prepared for toluene hydrogenation. Rh@Sn core- shell nanoparticles were first synthesized through a sequential reduction method and then in situ transformed into RhSn alloy on alumina by calcination and H2 reduction. Relative to Rh/Al2O3, Rh1Sn0.7/Al2O3 catalysts demonstrate enhanced catalytic efficiency for hydrogenation of toluene. At a toluene/Rh molar ratio of 118/ 1, 0.1 MPa of H2 pressure, and 45 degrees C, 99.2% of methyl cyclohexane yield was achieved at 2.0 h. The enhanced catalytic efficiency of Rh1Sn0.7/Al2O3 can be ascribed to the synergistic effect between Rh and Sn.