Highly dispersed cobalt on N-doped carbon nanotubes with improved Fischer-Tropsch synthesis activity

被引：25

作者：

Fu, Tingjun ^{[1
]}

Li, Zhenhua ^{[1
]}

机构：

[1] Tianjin Univ, Key Lab Green Chem Technol, Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Minist Educ,Sch Chem Engn & Technol, Tianjin 300072, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2014年 / 47卷

基金：

中国国家自然科学基金;

关键词：

Fischer-Tropsch synthesis; Cobalt catalyst; N-doped CNTs; CATALYSTS; SIZE; CONVERSION; SUPPORT; FUELS; CO;

D O I：

10.1016/j.catcom.2014.01.008

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：

N-doped carbon nanotubes (NCNTs) were used as the support for a Co catalyst (Co/A-NCNTs). After acid treatment, the bamboo-like structure of the NCNTs disappeared and more defects were formed on the surface of the NCNTs; however there was little change in the inner diameter and N content of the nanotubes. This resulted in an improved dispersion of Co inside the cavities of the NCNTs. The Co/A-NCNT catalyst was compared with Co supported on acid treated CNTs, and the Co/A-NCNT catalyst had a smaller surface area and for Fischer-Tropsch (FT) synthesis, it had a higher CO conversion with producing a narrower distribution of low carbon number hydrocarbons. The high Co dispersion in the Co/A-NCNTs is the main reason for the improved FT synthesis performance. (C) 2014 Elsevier B.V. All rights reserved.

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收藏

页码：54 / 57

页数：4

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