Production of hydrogen via hydrolysis of hydrides in Mg-La system

	Production of hydrogen via hydrolysis of hydrides in Mg-La system
	Ouyang, L. Z.1; Xu, Y. J.1; Dong, H. W.1; Sun, L. X.2; Zhu, M.1
刊名	international journal of hydrogen energy
	2009-12-01
卷号	34 期号:24 页码:9671-9676
关键词	Hydrogen generation Magnesium Rare earth Hydrolysis
英文摘要	hydrogen generation via hydrolysis of 250 mg hydrogenated mg(3)la and la(2)mg(17) in 100 ml water has been investigated at 298 k. hydrolysis reactions of hydrogenated mg(3)la and la(2)mg(17) obtained by induction melting and then hydrogenated at 298 k is found to be fast when they are immersed in water. the hydrolysis reaction of hydrogenated mg(3)la almost completes within 21 min with faster kinetics and higher yield than those obtained of hydrogenated la(2)mg(17). the hydrogen production rate is 43.8 ml min(-1) g(-1) of hydrogen in the first 20 min of reaction compared to a conversion yield of 88% for hydrogenated mg(3)la and 40.1 ml min(-1) g(-1) of hydrogen in the first 20 min of reaction for hydrogenated la2mg17. it is related to the catalytic effect of lah(3) formed during the hydriding process, accentuating corrosion of mgh(2) greatly. the experimental curves of hydrogen generation kinetics at room temperature are well fitted by the avrami-erofeev equation. the reaction mechanism of hydrogenated mg(3)la and la(2)mg(17) was also discussed. (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]	magnesium alloy scraps ; fuel-cell applications ; metal hydride ; storage ; generation ; aluminum ; catalyst ; lanthanum ; mixtures ; surface
收录类别	SCI
语种	英语
WOS记录号	WOS:000272856400004
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/141294]
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.S China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Mat & Thermochem Lab, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Ouyang, L. Z.,Xu, Y. J.,Dong, H. W.,et al. Production of hydrogen via hydrolysis of hydrides in Mg-La system[J]. international journal of hydrogen energy,2009,34(24):9671-9676.
APA	Ouyang, L. Z.,Xu, Y. J.,Dong, H. W.,Sun, L. X.,&Zhu, M..(2009).Production of hydrogen via hydrolysis of hydrides in Mg-La system.international journal of hydrogen energy,34(24),9671-9676.
MLA	Ouyang, L. Z.,et al."Production of hydrogen via hydrolysis of hydrides in Mg-La system".international journal of hydrogen energy 34.24(2009):9671-9676.