Synthesis and hydrogen storage properties of Mg-La-Al nanoparticles
文献类型：期刊论文
| 作者 | Liu, Tong1; Qin, Chenggong1; Zhu, Mu1; Cao, Yurong1; Shen, Hailong1; Li, Xingguo2 |
| 刊名 | JOURNAL OF POWER SOURCES
 |
| 出版日期 | 2012-12-01 |
| 卷号 | 219页码:100-105 |
| 关键词 | Magnesium Nanoparticles Hydrogen Storage Kinetics Crystal Structure |
| ISSN号 | 0378-7753 |
| DOI | 10.1016/j.jpowsour.2012.07.027 |
| 英文摘要 | Mg-2 at.% La-2.6 at.% Al composite nanoparticles are prepared by hydrogen plasma-metal reaction (HPMR) method. The electron microscopy and X-ray diffraction studies reveal that these nanoparticles are made of single crystalline Mg of about 160 nm, and a little amount of polycrystalline Al2La of 15 nm dispersing on the surface of Mg. The addition of Al effectively reduces the oxidation of Mg nanoparticles. After hydrogenation, Al2La disproportionates into single crystalline LaH3 of 15 nm. The composite nanoparticles can absorb 5.0 wt.% H-2 in 30 min even at 473 K. and the storage capacity is as high as 6.8 wt.% at 673 K. They can also release 6.0 wt.% H-2 in less than 10 min at 673 K. The catalytic effect of LaH3 nanoparticles, nanocrystalline structure and low oxide content of Mg accelerate the hydrogen sorption process of Mg-La-Al composite nanoparticles with a low hydrogen absorption activation energy of 23.1 kJ mol(-1). (C) 2012 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000309568400015 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/49347]  |
| 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, Minist Educ, Key Lab Aerosp Mat & Performance, Beijing 100191, Peoples R China 2.Peking Univ, BNLMS, State Key Lab Rare Earth Mat Chem & Applicat, Coll Chem & Mol Engn, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Tong,Qin, Chenggong,Zhu, Mu,et al. Synthesis and hydrogen storage properties of Mg-La-Al nanoparticles[J]. JOURNAL OF POWER SOURCES,2012,219:100-105. |
| APA | Liu, Tong,Qin, Chenggong,Zhu, Mu,Cao, Yurong,Shen, Hailong,&Li, Xingguo.(2012).Synthesis and hydrogen storage properties of Mg-La-Al nanoparticles.JOURNAL OF POWER SOURCES,219,100-105. |
| MLA | Liu, Tong,et al."Synthesis and hydrogen storage properties of Mg-La-Al nanoparticles".JOURNAL OF POWER SOURCES 219(2012):100-105. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。