|
Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Engineering / Faculty of Engineering >
Peer-reviewed Journal Articles, etc >
Unique Hydrogen Desorption Properties of LiAlH4/h-BN Composites
This item is licensed under:Creative Commons Attribution 4.0 International
| Title: | Unique Hydrogen Desorption Properties of LiAlH4/h-BN Composites |
| Authors: | Nakagawa, Yuki Browse this author | | Isobe, Shigehito Browse this author →KAKEN DB | | Ohki, Takao Browse this author | | Hashimoto, Naoyuki Browse this author |
| Keywords: | alanate | | h-BN | | hydrogen storage | | catalyst | | Li ion mobility |
| Issue Date: | 25-Oct-2017 |
| Publisher: | MDPI |
| Journal Title: | Inorganics |
| Volume: | 5 |
| Issue: | 4 |
| Start Page: | 71 |
| Publisher DOI: | 10.3390/inorganics5040071 |
| Abstract: | Hexagonal boron nitride (h-BN) is known as an effective additive to improve the hydrogen de/absorption properties of hydrogen storage materials consisting of light elements. Herein, we report the unique hydrogen desorption properties of LiAlH4/h-BN composites, which were prepared by ball-milling. The desorption profiles of the composite indicated the decrease of melting temperature of LiAlH4, the delay of desorption kinetics in the first step, and the enhancement of the kinetics in the second step, compared with milled LiAlH4. Li3AlH6 was also formed in the composite after desorption in the first step, suggesting h-BN would have a catalytic effect on the desorption kinetics of Li3AlH6. Finally, the role of h-BN on the desorption process of LiAlH4 was discussed by comparison with the desorption properties of LiAlH4/X (X = graphite, LiCl and LiI) composites, suggesting the enhancement of Li ion mobility in the LiAlH4/h-BN composite. |
| Rights: | © 2017 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/). | | http://creativecommons.org/licenses/by/4.0/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/68236 |
| 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)
|
Submitter: 中川 祐貴
|
