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Doping effect of Nb species on hydrogen desorption properties of AlH3
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| Title: | Doping effect of Nb species on hydrogen desorption properties of AlH3 |
| Authors: | Nakagawa, Yuki Browse this author | | Lee, Chung-Hyun Browse this author | | Matsui, Kouki Browse this author | | Kousaka, Kohei Browse this author | | Isobe, Shigehito Browse this author | | Hashimoto, Naoyuki Browse this author | | Yamaguchi, Shotaro Browse this author | | Miyaoka, Hiroki Browse this author | | Ichikawa, Takayuki Browse this author →KAKEN DB | | Kojima, Yoshitsugu Browse this author |
| Keywords: | Hydrogen storage | | Aluminum hydride | | Niobium fluoride | | Niobium oxide | | Catalytic effect |
| Issue Date: | 15-Feb-2018 |
| Publisher: | Elsevier |
| Journal Title: | Journal of alloys and compounds |
| Volume: | 734 |
| Start Page: | 55 |
| End Page: | 59 |
| Publisher DOI: | 10.1016/j.jallcom.2017.10.273 |
| Abstract: | Hydrogen desorption properties of alpha-AlH3 doped with Nb species (Nb, Nb2O5 and NbF5) were investigated. Doping Nb species improved the desorption properties of AlH3. In particular, 1 mol% NbF5-doped AlH3 showed the lowest onset desorption temperature at 60 degrees C. Compared with Nb- or Nb2O5-doped AlH3, the fine distribution of dopant was successfully achieved in NbF5-doped AlH3. The apparent activation energy for hydrogen desorption of AlH3 was slightly decreased with the dopant of NbF5. The improvement of desorption properties might be due to the finely dispersed Nb and/or AlF3, which are formed by the reaction between NbF5 and AlH3 (surface Al2O3). |
| Rights: | © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | | http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/76747 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 中川 祐貴
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