Hydriding/dehydriding properties of MgH2/5 wt.% Ni coated CNFs composite
文献类型：期刊论文
| 作者 | Wu, C. Z.1; Yao, X. D.2,3; Zhang, H.4 |
| 刊名 | international journal of hydrogen energy
 |
| 出版日期 | 2010 |
| 卷号 | 35期号:1页码:247-252 |
| 关键词 | Hydrogen storage materials Magnesium hydride Ni coated CNFs Composites Ball milling |
| 产权排序 | 1;1 |
| 通讯作者 | 吴成章 |
| 英文摘要 | in this paper, we reported that the prepared nickel coated carbon nanofibers (nicnfs) by electroless plating method exhibited superior catalytic effect on hydrogen absorption/desorption of magnesium (mg). it is demonstrated that the nanocomposites of mgh2/5 wt.% nicnfs prepared by ball milling could absorb hydrogen very fast at low temperatures, e.g. absorb similar to 6.0 wt.% hydrogen in 5 min at 473 k and similar to 5.0 wt.% hydrogen in 10 min even at a temperature as low as 423 k. more importantly, the desorption of hydrogen was also significantly improved with additives of nicnfs. diffraction scanning calorimetry (dsc) measurement indicated that the peak desorption temperature decreased 50 k and the onset temperature for desorption decreased 123 k. the composites also desorbed hydrogen fast, e.g. desorb 5.5 wt.% hydrogen within 20 min at 573 k. it is suggested that the new phase of mg2ni, and the nano-sized dispersed distribution of ni and carbon contributed to this significant improvement. johnson-mehl-avrami (jma) analysis illustrated that hydrogen diffusion is the rate-limiting step for hydrogen absorption/desorption. (c) 2009 professor t. nejat veziroglu. published by elsevier ltd. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, physical ; electrochemistry ; energy & fuels |
| 研究领域[WOS] | chemistry ; electrochemistry ; energy & fuels |
| 关键词[WOS] | hydrogen storage properties ; magnesium hydride ; carbon nanotubes ; sorption ; kinetics ; nb2o5 ; mg ; nanocomposites ; improvement ; graphite |
| 收录类别 | SCI |
| 原文出处 | false |
| 语种 | 英语 |
| WOS记录号 | WOS:000274079200030 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/103469]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 2.Univ Queensland, Sch Engn, ARC Ctr Excellence Funct Nanomat, St Lucia, Qld 4072, Australia 3.Griffith Univ, Queensland Micro & Nanotechnol Ctr, Nathan, Qld 4072, Australia 4.Shenyang Inst Chem Technol, Sch Mat Sci & Engn, Shenyang 110142, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, C. Z.,Yao, X. D.,Zhang, H.. Hydriding/dehydriding properties of MgH2/5 wt.% Ni coated CNFs composite[J]. international journal of hydrogen energy,2010,35(1):247-252. |
| APA | Wu, C. Z.,Yao, X. D.,&Zhang, H..(2010).Hydriding/dehydriding properties of MgH2/5 wt.% Ni coated CNFs composite.international journal of hydrogen energy,35(1),247-252. |
| MLA | Wu, C. Z.,et al."Hydriding/dehydriding properties of MgH2/5 wt.% Ni coated CNFs composite".international journal of hydrogen energy 35.1(2010):247-252. |
入库方式： OAI收割
来源：大连化学物理研究所
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