Metallic and Carbon Nanotube-Catalyzed Coupling of Hydrogenation in Magnesium
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- 作者：Xiangdong Yao ; Chengzhang Wu ; Aijun Du ; Jin Zou ; Zhonghua Zhu ; Ping Wang ; Huiming Cheng ; Sean Smith ; Gaoqing Lu
- 刊名：Journal of the American Chemical Society
- 出版年：2007
- 出版时间：December 19, 2007
- 年：2007
- 卷：129
- 期：50
- 页码：15650 - 15654
- 全文大小：142K
- 年卷期：v.129,no.50(December 19, 2007)
- ISSN：1520-5126
文摘
Synergistic effect of metallic couple and carbon nanotubes on Mg results in an ultrafast kineticsof hydrogenation that overcome a critical barrier of practical use of Mg as hydrogen storage materials. Theultrafast kinetics is attributed to the metal-H atomic interaction at the Mg surface and in the bulk (energyfor bonding and releasing) and atomic hydrogen diffusion along the grain boundaries (aggregation of carbonnanotubes) and inside the grains. Hence, a hydrogenation mechanism is presented.