Effects of SWNT and metallic catalyst on hydrogen absorption/desorption performance of MgH2
文献类型：期刊论文
| 作者 | C. Z. Wu ; P. Wang ; X. D. Yao ; C. Liu ; D. M. Chen ; G. Q. Lu ; H. M. Cheng |
| 刊名 | Journal of Physical Chemistry B
 |
| 出版日期 | 2005 |
| 卷号 | 109期号:47页码:22217-22221 |
| 关键词 | walled carbon nanotubes hydriding properties storage magnesium composite sorption graphite kinetics system |
| ISSN号 | 1520-6106 |
| 中文摘要 | The microstructure and absorption/desorption characteristics of composite M-H, and 5 wt % as-prepared single-walled carbon nanotubes (MgH2-5ap) obtained by the mechanical grinding method were investigated. Experimental results show that the MgH2-5ap sample exhibits faster absorption kinetics and relatively lower desorption temperature than pure MgH2 or MgH2-purified single-walled carbon nanotube composite. Storage capacities of 6.0 and 4.2 wt % hydrogen for the MgH2-5ap composite were achieved in 60 min at 423 and 373 K, respectively. Furthermore, its desorption temperature was reduced by 70 K due to the introduction of as-prepared single-walled carbon nanotubes (SWNTs). In addition, the different effects of SWNTs and metallic catalysts contained in the as-prepared SWNTs were also investigated and a hydrogenation mechanism was proposed. It is suggested that metallic particles may be mainly responsible for the improvement of the hydrogen absorption kinetics, and SWNTs for the enhancement of hydrogen absorption capacity of MgH2. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35109]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | C. Z. Wu,P. Wang,X. D. Yao,et al. Effects of SWNT and metallic catalyst on hydrogen absorption/desorption performance of MgH2[J]. Journal of Physical Chemistry B,2005,109(47):22217-22221. |
| APA | C. Z. Wu.,P. Wang.,X. D. Yao.,C. Liu.,D. M. Chen.,...&H. M. Cheng.(2005).Effects of SWNT and metallic catalyst on hydrogen absorption/desorption performance of MgH2.Journal of Physical Chemistry B,109(47),22217-22221. |
| MLA | C. Z. Wu,et al."Effects of SWNT and metallic catalyst on hydrogen absorption/desorption performance of MgH2".Journal of Physical Chemistry B 109.47(2005):22217-22221. |
入库方式： OAI收割
来源：金属研究所
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