期刊
JOURNAL OF CATALYSIS
卷 381, 期 -, 页码 443-453出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcat.2019.11.021
关键词
USY@Ni; Ni nanoparticles; Reductive amination; 1-octanol
资金
- China Ministry of Science and Technology [2016YFA0202804]
- National Natural Science Foundation of China [21872052, 21533002, 21603075]
Nickel silicate and NiAl-LDHs (layered double-hydroxides) have been controllably fabricated on the crystal surface of Si-rich and Al-rich USY zeolites, respectively, through a distinctive in-situ hydrothermal growth approach. This was realized by the host-guest chemistry that induced chemoselective interactions between adscititious Ni source and constituent species of zeolite framework. Upon hydrogen reduction, nickel silicate and NiAl-LDHs were transformed to highly dispersed Ni nanoparticles (NPs) immobilized in the SiO2 and Al2O3 matrix, respectively, which were firmly anchored around the USY crystals. The controllable immobilization of Ni NPs created well preserved hierarchical porosity in USY zeolites. With highly dispersed metallic Ni active sites in Al2O3 matrix supported on USY zeolite, the USY@Ni-3 catalyst exhibited similar conversion but significantly enhanced selectivity in the reductive amination of 1-octanol to corresponding alkylamines in comparison to conventional Raney Ni catalyst. (C) 2019 Elsevier Inc. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据