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A new type of Mg-based metal hydride with promising hydrogen
Ouyang, L. Z.; Dong, H. W.; Peng, C. H.; Sun, L. X.; Zhu, M.
关键词Magnesium Hydrogen Storage Rare Earth Induction Melting
刊名INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
2007-11-01
DOI10.1016/j.ijhydene.2007.05.026
32期:16页:3929-3935
收录类别SCI
文章类型Article
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]SORPTION PROPERTIES ; STORAGE MATERIALS ; ELECTROCHEMICAL CHARACTERISTICS ; NI ; MAGNESIUM ; ALLOYS ; OXIDE ; CO
英文摘要Three Mg3RE (rare earth abbreviated as RE) compounds were prepared in Mg-La, Mg-Nd and Mg-misch metal (abbreviated as Mg-Mm) systems by induction melting. XRD patterns show that the as melted Mg3RE compounds have the D0(3) structure. The lattice constants of Mg3La, Mg(3)Mm and Mg3Nd phases are 0.7498, 0.7451 and 0.7390nm, respectively. The lattice constants of the new hydride phases formed from Mg3La and Mg3Nd during the hydrogenation process with fcc structure are 0.5607 and 0.5598nm, respectively. The alloys have good hydrogen storage properties and could absorb hydrogen at room temperature with rapid hydriding and dehydriding kinetics. The maximum hydrogen absorption content Of Mg3La, Mg(3)Mm and Mg3Nd alloys are 2.89, 2.58 and 1.95 wt%, respectively. The enthalpy (Delta H) and entropy (AS) Of Mg3RE-H dehydriding reaction were also determined. Hydrogen absorption kinetic curves measured at room temperature could be well fitted by the Avrami-Erofeev equation. (c) 2007 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.
语种英语
WOS记录号WOS:000251463200038
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被引频次:47[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/140539
专题中国科学院大连化学物理研究所
作者单位1.S China Univ Technol, Coll Mech Engn, Guangzhou 510641, Guangdong, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Mat & Thermochem Lab, Dalian 116023, Peoples R China
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Ouyang, L. Z.,Dong, H. W.,Peng, C. H.,et al. A new type of Mg-based metal hydride with promising hydrogen[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2007,32(16):3929-3935.
APA Ouyang, L. Z.,Dong, H. W.,Peng, C. H.,Sun, L. X.,&Zhu, M..(2007).A new type of Mg-based metal hydride with promising hydrogen.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,32(16),3929-3935.
MLA Ouyang, L. Z.,et al."A new type of Mg-based metal hydride with promising hydrogen".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 32.16(2007):3929-3935.
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