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Unusual hydrogen absorption properties in graphite mechanically milled under various hydrogen pressures up to 6 MPa
Chen, DM; Ichikawa, T; Fujii, H; Ogita, N; Udagawa, M; Kitano, Y; Tanabe, E
Corresponding AuthorFujii, H()
2003-05-12
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume354Issue:1-2Pages:L5-L9
AbstractWe examined hydrogen absorption/desorption behaviors in graphite mechanically milled under hydrogen pressures ranging from 0.3 to 6.0 MPa. Experimental results indicated that the chemisorbed hydrogen concentration during 80 h milling decreased from 6.1 to 4.1 wt.% with increasing milling hydrogen pressure, while the physisorption-like hydrogen concentration increased with increasing milling hydrogen pressure and reached more than 0.5 wt.% at 6 MPa. Moreover, higher pressure hydrogen suppressed the fracture rate of the milled graphite more effectively, suggesting that the hydrogen atoms trapped at the edges of the graphene sheets and between the graphene layers near the surface are responsible for preserving the lamellar nanocrystalline structure, which may be the host for physisorption-like hydrogen absorption. (C) 2002 Elsevier Science B.V. All rights reserved.
Keywordhydrogen absorbing materials gas-solid reactions mechanical alloying X-ray diffraction
DOI10.1016/S0925-8388(02)01355-5
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000182879800002
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:39[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/116180
Collection中国科学院金属研究所
Corresponding AuthorFujii, H
Affiliation1.Hiroshima Univ, Fac Integrated Arts & Sci, Higashihiroshima 7398521, Japan
2.Chinese Acad Sci, Met Res Inst, Shenyang 110015, Peoples R China
3.Shimane Univ, Dept Mat Sci, Matsue, Shimane 6908504, Japan
4.Western Hiroshima Prefectural Inst Sci & Technol, Higashihiroshima 7390046, Japan
Recommended Citation
GB/T 7714
Chen, DM,Ichikawa, T,Fujii, H,et al. Unusual hydrogen absorption properties in graphite mechanically milled under various hydrogen pressures up to 6 MPa[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2003,354(1-2):L5-L9.
APA Chen, DM.,Ichikawa, T.,Fujii, H.,Ogita, N.,Udagawa, M.,...&Tanabe, E.(2003).Unusual hydrogen absorption properties in graphite mechanically milled under various hydrogen pressures up to 6 MPa.JOURNAL OF ALLOYS AND COMPOUNDS,354(1-2),L5-L9.
MLA Chen, DM,et al."Unusual hydrogen absorption properties in graphite mechanically milled under various hydrogen pressures up to 6 MPa".JOURNAL OF ALLOYS AND COMPOUNDS 354.1-2(2003):L5-L9.
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