| Improved hydrogen storage performance of Li-Mg-N-H materials by optimizing composition and adding single-walled carbon nanotubes; Improved hydrogen storage performance of Li-Mg-N-H materials by optimizing composition and adding single-walled carbon nanotubes |
| Y. Chen; P. Wang; C. Liu; H. M. Cheng
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| 2007
; 2007
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| 发表期刊 | International Journal of Hydrogen Energy
 ; International Journal of Hydrogen Energy
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| ISSN | 0360-3199
; 0360-3199
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| 卷号 | 32期号:9页码:1262-1268 |
| 摘要 | A systematic investigation on the hydrogen storage properties of Li-Mg-N-H materials with various compositions was performed. Li-Mg-N-H hydrogen storage materials were prepared by mechanically milling LiNH2/MgH2 mixtures with initial molar ratios ranging from 1.5:1 to 3: 1, followed by de/rehydriding at 200 degrees C. It was found that the hydrogen storage capacity of the system was highly dependent on the initial phase ratio of the LiNH2/MgH2 mixture. An optimum hydrogen capacity of about 5 wt% was achieved in the 2.15:1 LiNH2/MgH2 mixture. Different carbon materials, such as the single-walled carbon nanotubes (SWNTs), multi-walled carbon nanotubes, graphite and activated carbon, were used as additive to improve the hydrogen storage performance. It was found that the dehydriding kinetics of the Li-Mg-N-H material could be markedly improved by adding a small amount of SWNTs, especially in the as-prepared state. (c) 2006 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.; A systematic investigation on the hydrogen storage properties of Li-Mg-N-H materials with various compositions was performed. Li-Mg-N-H hydrogen storage materials were prepared by mechanically milling LiNH2/MgH2 mixtures with initial molar ratios ranging from 1.5:1 to 3: 1, followed by de/rehydriding at 200 degrees C. It was found that the hydrogen storage capacity of the system was highly dependent on the initial phase ratio of the LiNH2/MgH2 mixture. An optimum hydrogen capacity of about 5 wt% was achieved in the 2.15:1 LiNH2/MgH2 mixture. Different carbon materials, such as the single-walled carbon nanotubes (SWNTs), multi-walled carbon nanotubes, graphite and activated carbon, were used as additive to improve the hydrogen storage performance. It was found that the dehydriding kinetics of the Li-Mg-N-H material could be markedly improved by adding a small amount of SWNTs, especially in the as-prepared state. (c) 2006 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved. |
| 部门归属 | chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;cheng, hm (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;cheng@imr.ac.cn
; chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;cheng, hm (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;cheng@imr.ac.cn
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| 关键词 | Hydrogen Storage
Hydrogen Storage
Dehydriding Kinetics
Dehydriding Kinetics
Carbon Nanotubes
Carbon Nanotubes
Arc-discharge Method
Arc-discharge Method
System
System
Microstructure
Microstructure
Desorption
Desorption
Absorption
Absorption
Behaviors
Behaviors
Property
Property
Imides
Imides
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| URL | 查看原文
; 查看原文
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| WOS记录号 | WOS:000247751200015
; WOS:000247751200015
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.imr.ac.cn/handle/321006/33466
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| 专题 | 中国科学院金属研究所
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推荐引用方式
GB/T 7714 |
Y. Chen,P. Wang,C. Liu,et al. Improved hydrogen storage performance of Li-Mg-N-H materials by optimizing composition and adding single-walled carbon nanotubes, Improved hydrogen storage performance of Li-Mg-N-H materials by optimizing composition and adding single-walled carbon nanotubes[J]. International Journal of Hydrogen Energy, International Journal of Hydrogen Energy,2007, 2007,32, 32(9):1262-1268, 1262-1268.
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| APA |
Y. Chen,P. Wang,C. Liu,&H. M. Cheng.(2007).Improved hydrogen storage performance of Li-Mg-N-H materials by optimizing composition and adding single-walled carbon nanotubes.International Journal of Hydrogen Energy,32(9),1262-1268.
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| MLA |
Y. Chen,et al."Improved hydrogen storage performance of Li-Mg-N-H materials by optimizing composition and adding single-walled carbon nanotubes".International Journal of Hydrogen Energy 32.9(2007):1262-1268.
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