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ID 33052
本文ファイル
別タイトル
Hydrogenation properties of lithium intercalated graphite
著者
石田 渉
キーワード
Gas storage
Graphite
Chemisorption
Intercalation
NDC
電気工学
抄録(英)
Two kinds of nano-structural graphite were prepared from graphite powder by ball-milling under hydrogen or argon atmosphere, where each product is denoted as HG or AG, respectively. And then, non-treated graphite powder (G), HG or AG was milled with Li to synthesize lithium-graphite intercalation compounds, which are denoted as Li-G, Li-HG and Li-AG, respectively. In XRD profiles of Li-G and Li-HG, it was revealed that the peaks correspond to LiC6 and LiCl2, while no peaks were observed in the case of Li-AG. However, similar thermal decomposition reactions were observed for all compounds at about 450°C under an inert gas, indicating that Li-AG includes the lithium-carbon (Li-C) compound. After heat treatment under hydrogen pressure, the formation of LiH was confirmed by XRD measurements for all compounds, indicating that the intercalated lithium reacted with hydrogen. Furthermore, all hydrogenated compounds desorbed hydrogen with heating up to 500°C. In addition, the hydrogenated Li-HG and Li-AG formed lithium carbide (LiC) after hydrogen desorption. On the other hand, in the case of the hydrogenated Li-G, it is confirmed that not only LiC but also LiC12 were formed after dehydrogenation.
掲載誌名
炭素
233号
開始ページ
136
終了ページ
139
出版年月日
2008-06-09
出版者
炭素材料学会
ISSN
0371-5345
NCID
出版者DOI
言語
日本語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
権利情報
Copyright (c) 2008 炭素材料学会
関連情報URL
部局名
先端物質科学研究科