Metallic and carbon nanotube-catalyzed coupling of hydrogenation in magnesium.

作者信息

Yao Xiangdong, Wu Chengzhang, Du Aijun, Zou Jin, Zhu Zhonghua, Wang Ping, Cheng Huiming, Smith Sean, Lu Gaoqing

机构信息

ContARC Centre for Functional Nanomaterials, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, QLD 4072, Brisbane, Australia.

出版信息

J Am Chem Soc. 2007 Dec 19;129(50):15650-4. doi: 10.1021/ja0751431. Epub 2007 Nov 23.

DOI:10.1021/ja0751431

PMID:18034479

Abstract

Synergistic effect of metallic couple and carbon nanotubes on Mg results in an ultrafast kinetics of hydrogenation that overcome a critical barrier of practical use of Mg as hydrogen storage materials. The ultrafast kinetics is attributed to the metal-H atomic interaction at the Mg surface and in the bulk (energy for bonding and releasing) and atomic hydrogen diffusion along the grain boundaries (aggregation of carbon nanotubes) and inside the grains. Hence, a hydrogenation mechanism is presented.

摘要