2003年10月
Hydrogen in potassium-doped carbon nanotubes studied by positron annihilation
RADIATION PHYSICS AND CHEMISTRY
- ,
- ,
- 巻
- 68
- 号
- 3-4
- 開始ページ
- 545
- 終了ページ
- 547
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1016/S0969-806X(03)00227-5
- 出版者・発行元
- PERGAMON-ELSEVIER SCIENCE LTD
The positron lifetime for potassium-doped carbon nanotubes (K-NTs) ascribed to positrons in trapping centers is shortened upon exposure of the K-NTs to hydrogen. Thermal desorption of hydrogen from hydrogenated K-NTs shows a peak around 510 K, where a hydrogenated potassium-graphite intercalation compound (K-GIC) shows a peak. The absorbed hydrogen is bonded with K-NTs in the same manner as found in hydrogenated K-GIC, and their positron-trapping centers are located in a more negatively charged region, such as a two-dimensional structure of hydride ions. (C) 2003 Elsevier Science Ltd. All rights reserved.
- リンク情報
- ID情報
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- DOI : 10.1016/S0969-806X(03)00227-5
- ISSN : 0969-806X
- Web of Science ID : WOS:000185778900044