期刊
CATALYSIS COMMUNICATIONS
卷 12, 期 5, 页码 332-336出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2010.10.002
关键词
Ni/SiO2 catalyst; Drying with n-butanol; Active metal surface area; Microcalorimetric adsorption; Surface acidity; Hydrogenation of toluene
资金
- NSFC [21073089]
- MSTC [2005CB221400]
- Jiangsu Province, China [BE2009145]
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.
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