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学科主题: 物理化学
题名: Microstructure of Al-Li alloy and its hydrolysis as portable hydrogen source for proton-exchange membrane fuel cells
作者: Fan, Mei-qiang1;  Sun, Li-Xian2;  Xu, Fen3;  Mei, Desheng4;  Chen, Da1;  Chai, Wen-xiang1;  Huang, Fen-lei5;  Zhang, Qing-ming5
通讯作者: 孙立贤 ;  徐芬
关键词: Al-Li alloy ;  Hydrogen generation ;  Microstructure ;  Hydrolysis reaction
刊名: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
发表日期: 2011-08-01
DOI: 10.1016/j.ijhydene.2011.05.096
卷: 36, 期:16, 页:9791-9798
收录类别: SCI
文章类型: Article
部门归属: DNL19
项目归属: 1903
产权排名: 2,2
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Electrochemistry ;  Energy & Fuels
摘要: Microstructure of Al-Li alloy and its hydrolysis as portable hydrogen source for proton-exchange membrane fuel cells
研究领域[WOS]: Chemistry ;  Electrochemistry ;  Energy & Fuels
英文摘要: Activated aluminum alloys are able to release hydrogen in neutral aqueous solutions at 298 K, but at lower theoretical hydrogen generation values than pure aluminum. This is because the additives in these alloys cannot react with water to produce H-2. In this paper, a new process to obtain hydrogen from milled Al-Li alloy in water is discussed. The optimized alloy is able to produce hydrogen yields > 1245 ml hydrogen/g alloy with higher than 90% conversion efficiency and a controllable hydrogen generation rate at 298 K and 1 atm. The improved hydrolysis properties mostly come from the increased lithium content, which helps decrease grain size, accompanied by the phase evolution of Al-Li to Al2Li3 to Al4Li9. Further analysis of the Li/Al mole ratio of the hydrolysis byproduct LiAl2(OH)(7) shows that excess LiOH accelerates aluminum hydrolysis in water. Other effects, such as milling time, annealing temperature, and additives, are also reported and discussed. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
关键词[WOS]: ALUMINUM-ALLOYS ;  WATER ;  GENERATION ;  CORROSION
语种: 英语
WOS记录号: WOS:000294374800044
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/115764
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.China Jiliang Univ, Dept Mat Sci & Engn, Hangzhou 310018, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Mat & Thermochem Lab, Dalian 116023, Peoples R China
3.Liaoning Normal Univ, Dept Chem Engn, Dalian 116029, Peoples R China
4.Chinese Acad Sci, Shanghai Inst Mat Med, Dept Med Chem, Shanghai 201203, Peoples R China
5.Beijing Inst Technol, State Key Lab Explos Sci & Technol, Beijing 100081, Peoples R China

Recommended Citation:
Fan, Mei-qiang,Sun, Li-Xian,Xu, Fen,et al. Microstructure of Al-Li alloy and its hydrolysis as portable hydrogen source for proton-exchange membrane fuel cells[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2011,36(16):9791-9798.
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