Co-production of hydrogen and multi-wall carbon nanotubes from ethanol decomposition over Fe/Al2O3 catalysts

被引：60
|
作者：
Li, Weilong [1 ,2 ]
Wang, Hui [1 ]
Ren, Zhaoyu [2 ]
Wang, Gang [1 ]
Bai, Jinbo [3 ]
机构：
[1] NW Univ Xian, Dept Chem, Shaanxi Key Lab Physicoinorgan Chem, Xian 710069, Peoples R China
[2] NW Univ Xian, Inst Photon & Photon Technol, Xian 710069, Peoples R China
[3] Ecole Cent Paris, Lab MSS, MAT, CNRS,UMR 8579, F-92295 Chatenay Malabry, France
来源：
APPLIED CATALYSIS B-ENVIRONMENTAL | 2008年 / 84卷 / 3-4期
基金：
中国国家自然科学基金;
关键词：
Ethanol decomposition; Supported Fe catalyst; Hydrogen; Carbon nanotube;
D O I：
10.1016/j.apcatb.2008.04.026
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：
The co-production of hydrogen and carbon nanotubes (CNTs) from the decomposition of ethanol over Fe/Al2O3 at different temperatures and feeding rates of ethanol was investigated systematically. The results indicated that Fe/Al2O3 was a quite active catalyst for the co-production of hydrogen and CNTs and that its activity and stability depended strongly on the Fe loading. Among all catalysts tested, 10 mol% Fe/Al2O3 was the most effective catalyst based on the ratio of hydrogen production, the total H-2 yield, and the quality of the CNTs formed. The efficiency of hydrogen production from ethanol decomposition over 10 mol% Fe/Al2O3 reached a maximum of similar to 80% at 800 degrees C and the yield of CNTs with well-oriented growth and uniform diameter was 141%. In addition, the reaction of hydrogen and CNTs co-produced from ethanol decomposition was proposed. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：433 / 439
页数：7
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