Nano Ru/CNTs:: a highly active and stable catalyst for the generation of COx-free hydrogen in ammonia decomposition

被引：223

作者：

Yin, SF

Xu, BQ

Ng, CF

Au, CT ^{[1
]}

机构：

[1] Hong Kong Baptist Univ, Ctr Surface Anal & Res, Dept Chem, Kowloon, Hong Kong, Peoples R China

[2] Tsinghua Univ, Dept Chem, State Key Lab C1 Chem & Technol, Beijing 100084, Peoples R China

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2004年 / 48卷 / 04期

关键词：

carbon nanotube; ruthenium; ammonia decomposition; hydrogen generation; nanocatalyst;

D O I：

10.1016/j.apcatb.2003.10.013

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：

Very small Ru nanoparticles on carbon nanotubes (CNTs) were prepared by means of impregnation and H-2-reduction. The CNTs-supported Ru nanoparticles are highly active and stable in catalyzing the decomposition of ammonia for the generation of COx-free hydrogen. The modification of Ru/CNTs with potassium ions leads to a remarkable improvement in the activity. The excellent catalytic performances of Ru/CNTs and K-Ru/CNTs are related to the high dispersion of Ru, and to the high graphitization and purity of CNTs. (C) 2003 Elsevier B.V. All rights reserved.

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页码：237 / 241

页数：5

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