書誌事項
- タイトル別名
-
- Hydrogen storage properties of hydrogenated graphite destabilized by mixing with lithium hydride
- リチウム スイソカブツ オ テンカ シ フアンテイカ ショリ シタ スイソ キュウゾウ コクエン ノ スイソ チョゾウ トクセイ
この論文をさがす
抄録
Hydrogen storage properties of the ball-milled mixtures composed of hydrogenated nano-structural graphite (CnanoHx) and lithium hydride (LiH) were examined from thermodynamic and structural points of view, where the CnanoHx was synthesized by ball-milling graphite powder under hydrogen atmosphere. Since hydrogen atoms in the CnanoHx and LiH are strongly bonded with each host atom, heating up to >600°C is necessary to release hydrogen from each solid product. The CnanoHx and LiH composites desorbed hydrogen and hydrocarbon gases below 400°C with about 9.4 mass% weight loss. The 2: 1 composite of the CnanoHx and LiH reversibly stored hydrogen with an effective capacity of about 4.5 mass % at 350°C. No evident peaks were observed in XRD profiles after the dehydrogenation, indicating that the nano-structural feature remained after dehydrogenation due to formation of (CLi) nano clusters. However, only the LiH phase was crystallized after rehydrogenation at 350°C. From these results, it is concluded that hydrogen in the composites is destabilized by a novel interaction between the CnanoHx and LiH in a nanometer scale, and is desorbed at lower temperatures than each of the components. Therefore, this Li-C-H system can be recognized to be a new family of hydrogen storage materials.
収録刊行物
-
- 炭素
-
炭素 2007 (226), 2-7, 2007
炭素材料学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390282679202542464
-
- NII論文ID
- 10018709084
- 130004121533
-
- NII書誌ID
- AN00140335
-
- ISSN
- 18845495
- 03715345
-
- HANDLE
- 2115/76325
-
- NDL書誌ID
- 8656665
-
- データソース種別
-
- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可