Enhanced hydrogen reaction kinetics of nanostructured Mg-based composites with nanoparticle metal catalysts dispersed on supports

被引：13

作者：

Yoo, Yeong ^{[1
]}

Tuck, Mark

Kondakindi, Rajender

Seo, Chan-Yeol

Dehouche, Zahir

Belkacemi, Khaled

机构：

[1] Natl Res Council Canada, Inst Chem Proc & Environm Technol, Ottawa, ON K1A 0R6, Canada

[2] Dalhousie Univ, Dept Chem Engn, Halifax, NS B3J 2X4, Canada

[3] Univ Laval, Dept Soil Sci & Agrifood Engn, Quebec City, PQ G1K 7P4, Canada

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2007年 / 446卷

关键词：

hydrogen storage materials; polyol method; Ni/Pd nanoparticle catalyst; magnesium hydride; proton conductive ceramic catalyst;

D O I：

10.1016/j.jallcom.2006.12.054

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：

Hvdrogen reaction kinetics of nanocrystalline MgH(2) co-catalyzed with Ba(3)(Ca(1+x)Nb(2-x))O(9-delta) (BCN) proton conductive ceramics and nanoparticle bimetallic catalyst of Ni/Pd dispersed on single wall carbon nanotubes (SWNTs) support has been investigated. The nanoparticle bimetallic catalysts of Ni/Pd supported by SWNTs were synthesized based on a novel polyol method using NiCl(2)-6H(2)O, PdCl(2), NaOH and ethylene glycol (EG). The nanostructured Mg composites co-catalyzed with BCN and bimetallic supported catalysts exhibited stable hydrogen desorption capacity of 6.3-6.7 wt% H(2) and the significant enhancement of hydrogen desorption kinetics at 230-300 degrees C in comparison to either non-catalyzed MgH(2) or the nanocomposite of MgH(2) catalyzed with BCN. Crown Copyright (C) 2006 Published by Elsevier B.V. All rights reserved.

引用

页码：84 / 89

页数：6

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