Improved hydrogen storage properties of Mg-based nanocomposite by addition of LaNi5 nanoparticles
文献类型：期刊论文
| 作者 | Liu, Tong1; Chen, Chunguang1; Qin, Chenggong1; Li, Xingguo2 |
| 刊名 | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
 |
| 出版日期 | 2014-10-31 |
| 卷号 | 39期号:32页码:18273-18279 |
| 关键词 | Magnesium Lani5 Nanocomposite Hydrogen Storage Kinetics |
| ISSN号 | 0360-3199 |
| DOI | 10.1016/j.ijhydene.2014.03.041 |
| 英文摘要 | Mg (200 nm) and LaNi5 (25 nm) nanoparticles were produced by the hydrogen plasma-metal reaction (HPMR) method, respectively. Mg-5 wt.% LaNi5 nanocomposite was prepared by mixing these nanoparticles ultrasonically. During the hydrogenation/dehydrogenation cycle, Mg-LaNi5 transformed into Mg-Mg2Ni-LaH3 nanocomposite. Mg particles broke into smaller particles of about 80 nm due to the formation of Mg2Ni. The nanocomposite showed superior hydrogen sorption kinetics. It could absorb 3.5 wt.% H-2 in less than 5 min at 473 K, and the storage capacity was as high as 6.7 wt.% at 673 K. The nanocomposite could release 5.8 wt.% H-2 in less than 10 min at 623 K and 3.0 wt.% H-2 in 16 min at 573 K. The apparent activation energy for hydrogenation was calculated to be 26.3 kJ mol(-1). The high sorption kinetics was explained by the nanostructure, catalysis of Mg2Ni and LaH3 nanoparticles, and the size reduction effect of Mg2Ni formation. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000345804600012 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/52341]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Liu, Tong |
| 作者单位 | 1.Beihang Univ, Sch Mat Sci & Engn, Key Lab Aerosp Mat & Performance, Minist Educ, Beijing 100191, Peoples R China 2.Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Tong,Chen, Chunguang,Qin, Chenggong,et al. Improved hydrogen storage properties of Mg-based nanocomposite by addition of LaNi5 nanoparticles[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2014,39(32):18273-18279. |
| APA | Liu, Tong,Chen, Chunguang,Qin, Chenggong,&Li, Xingguo.(2014).Improved hydrogen storage properties of Mg-based nanocomposite by addition of LaNi5 nanoparticles.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,39(32),18273-18279. |
| MLA | Liu, Tong,et al."Improved hydrogen storage properties of Mg-based nanocomposite by addition of LaNi5 nanoparticles".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 39.32(2014):18273-18279. |
入库方式： OAI收割
来源：化学研究所
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