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	Synthesis and hydrogen storage properties of Mg-La-Al nanoparticles
	Liu, Tong ; Qin, Chenggong ; Zhu, Mu ; Cao, Yurong ; Shen, Hailong ; Li, Xingguo
刊名	电源杂志
	2012
关键词	Magnesium Nanoparticles Hydrogen storage Kinetics Crystal structure PLASMA-METAL REACTION MAGNESIUM HYDRIDE ALLOYS BEHAVIOR SORPTION SYSTEM DEHYDROGENATION DECOMPOSITION IMPROVEMENT STABILITY
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.; Electrochemistry; Energy & Fuels; SCI(E); 9; ARTICLE; 100-105; 219
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/229039]
专题	化学与分子工程学院
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]. 电源杂志,2012.
APA	Liu, Tong,Qin, Chenggong,Zhu, Mu,Cao, Yurong,Shen, Hailong,&Li, Xingguo.(2012).Synthesis and hydrogen storage properties of Mg-La-Al nanoparticles.电源杂志.
MLA	Liu, Tong,et al."Synthesis and hydrogen storage properties of Mg-La-Al nanoparticles".电源杂志 (2012).

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