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Effect of sodium hypophosphite on the activation behavior of hydrogen storage alloy
Hua, JS; Sun, YZ; Wang, WH; Sun, WS; Cai, QK; Hu, ZQ
Corresponding AuthorHua, JS()
2001-05-18
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume37Issue:5Pages:522-526
AbstractThe AB(5)-type alloy powder (MINi3.6Co0.7Mn0.3Al0.4) prepared by melt-spinning was treated by a reducer (solution of sodium hypophosphite) to form a Ni-rich layer on the surface of the particles, which can obviously improved the activity of the quenched powder. For the treated alloy powder the discharge capacity after 2 cycles of charge-discharge reached an ideal value of 241 mA(.)h(.)g(-1), but only 222 mA(.)h(.)g(-1) for the non-treated alloy powder after 5 cycles of charge-discharge. AES and XPS results show that the nature of the oxide layer formed on the surface plays a key role on the activation process of the metal hydrides in alkaline solution.
Keywordsurface treatment hydrogen storage alloy activation behavior
Indexed BySCI
Language英语
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000172766700016
PublisherSCIENCE CHINA PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/113625
Collection中国科学院金属研究所
Corresponding AuthorHua, JS
Affiliation1.Northeastern Univ, Dept Mat Sci & Engn, Shenyang 110004, Peoples R China
2.Chinese Acad Sci, Inst Met Res, State Key Lab Rapid Solidificat Nonequilibrium Al, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Hua, JS,Sun, YZ,Wang, WH,et al. Effect of sodium hypophosphite on the activation behavior of hydrogen storage alloy[J]. ACTA METALLURGICA SINICA,2001,37(5):522-526.
APA Hua, JS,Sun, YZ,Wang, WH,Sun, WS,Cai, QK,&Hu, ZQ.(2001).Effect of sodium hypophosphite on the activation behavior of hydrogen storage alloy.ACTA METALLURGICA SINICA,37(5),522-526.
MLA Hua, JS,et al."Effect of sodium hypophosphite on the activation behavior of hydrogen storage alloy".ACTA METALLURGICA SINICA 37.5(2001):522-526.
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