Preparation of highly loaded and dispersed Ni/SiO2 catalysts

被引：28

作者：

Xue, Mingwei ^{[1
]}

Hu, Shenghua ^{[1
]}

Chen, Hui ^{[1
]}

Fu, Yuchuan ^{[1
]}

Shen, Jianyi ^{[1
]}

机构：

[1] Nanjing Univ, Lab Mesoscop Chem, Sch Chem & Chem Engn, Nanjing 210093, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2011年 / 12卷 / 05期

关键词：

Ni/SiO2; catalyst; Drying with n-butanol; Active metal surface area; Microcalorimetric adsorption; Surface acidity; Hydrogenation of toluene; SUPPORTED NICKEL-CATALYSTS; DEPOSITION-PRECIPITATION; SILICA; HYDROGENATION; IDENTIFICATION; CHEMISORPTION; MCM-41;

D O I：

10.1016/j.catcom.2010.10.002

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A highly loaded and dispersed Ni/SiO2-B catalyst was prepared by the precipitation method with an n-butanol drying process. Drying with n-butanol significantly increased the surface area of the catalyst as well as the reducibility and dispersion of supported nickel, leading to the high active nickel surface area (66 m(2)/g-catalyst). In addition, the surface acidity of the Ni/SiO2-B catalyst was significantly enhanced, as probed by the microcalorimetric adsorption of ammonia. Accordingly, this catalyst adsorbed great amount of toluene with the high initial heat of about 140 kJ/mol, and exhibited high activity for the hydrogenation of toluene to methyl cyclohexane. (c) 2010 Elsevier B.V. All rights reserved.

引用

页码：332 / 336

页数：5

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