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A Novel Approach to Preparing Highly Porous and Dispersed Supported Nickel Catalyst
Author(s) -
Cui Sha,
Wang Zhenqing,
Wang Genggeng,
Yang Ying,
Liu Baijun
Publication year - 2017
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201702495
Subject(s) - catalysis , mesoporous material , nickel , materials science , hydrothermal circulation , chemical engineering , selectivity , porosity , amorphous solid , hydrothermal synthesis , decalin , naphthalene , dispersion (optics) , organic chemistry , chemistry , metallurgy , composite material , physics , optics , engineering
This article proposes a new synthesis of amorphous silica‐alumina (ASA) supported Ni catalyst using hydrothermal synthesis method by the assistant of cis‐9‐octadecenylamine. Cis‐9‐octadecenylamine, as a coordination agent and surfactant, could form Ni‐cis‐9‐octadecenylamine complex with nickel salt under hydrothermal condition, which boosts the metal dispersion. Characterization results by N 2 adsorption‐desorption shows that the as‐prepared catalyst is provided with enhanced porosity, especially mesoporous and by XRD, TEM and H 2 ‐TPR display that the resulting Ni particles are very small and uniform. The ASA supported Ni catalyst proves to be highly efficient and stable in naphthalene hydrogenation, and gives 100% conversion and more than 99% selectivity to decalin with an extremely wide activity window at 180∼280 °C, which is superior to its counterparts prepared via traditional impregnation method.