Fe2O3 nanoparticles encapsulated in TiO2 nanotubes for Fischer-Tropsch synthesis: The confinement effect of nanotubes on the catalytic performance

被引：26
|
作者：
Wang, Wenbo [1 ,2 ]
Ding, Mingyue [1 ]
Ma, Longlong [1 ]
Yang, Xu [1 ]
Li, Juan [1 ]
Tsubaki, Noritatsu [3 ]
Yang, Guohui [3 ]
Wang, Tiejun [1 ]
Li, Xinjun [1 ]
机构：
[1] Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou, Guangdong, Peoples R China
[2] Univ Chinese Acad Sci, Beijing, Peoples R China
[3] Toyama Univ, Sch Engn, Dept Appl Chem, Toyama 9308555, Japan
来源：
FUEL | 2016年 / 164卷
基金：
中国国家自然科学基金;
关键词：
Confinement effect; TiO2; nanotube; Fischer-Tropsch synthesis; Iron-based catalysts; Elongation of carbon chain; CARBON NANOTUBES; LOWER OLEFINS; SELECTIVITY; MECHANISM;
D O I：
10.1016/j.fuel.2015.09.089
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The catalysts with high activity and selectivity, especially the latter, play a key role in Fischer-Tropsch synthesis technology. Herein, a novel Fe-based confinement catalyst, Fe2O3 encapsulated in TiO2 nanotubes, was prepared by a method of vacuum-assisted impregnation. The catalyst presented an excellent yield of oil phase hydrocarbons and C5+ selectivity due to the confinement effect. This interesting phenomenon was discussed from the view of the restrained molecular movement and enhanced readsorption of short-chain alpha-olefins in the confined space of TiO2 nanotube channels. The results over this novel confinement catalyst revealed a promising research prospect on adjusting the product distribution to long-chain hydrocarbons for Fe-based Fischer-Tropsch catalyst. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：347 / 351
页数：5
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