Shape-Controlled Growth of MgH2/Mg Nano/Microstructures Via Hydriding Chemical Vapor Deposition

Zhu, Chunyu; Hosokai, Sou; Matsumoto, Itoko et al.

Crystal Growth & Design, 2010, 10(12), 5123-5128

Permalink : https://hdl.handle.net/2115/48525

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アクセス権
open access
URI
https://hdl.handle.net/2115/48525
タイトル
Shape-Controlled Growth of MgH2/Mg Nano/Microstructures Via Hydriding Chemical Vapor Deposition
著者
Zhu, Chunyu ; Hosokai, Sou ; Matsumoto, Itoko ; Akiyama, Tomohiro
著者名
Zhu, Chunyu
著者名
Hosokai, Sou
著者名
Matsumoto, Itoko
e-Rad_Researcher
50175808
著者名
Akiyama, Tomohiro
言語
英語
キーワード
Hydrogen storage
Magnesium hydride
Nanostuctures
Crystal growth
Hydriding chemical vapor deposition
発行日
2010
出版者
American Chemical Society
収録物名
Crystal Growth & Design
巻(号)
10(12)
ページ
5123-5128
抄録
In this paper, we report the shape-controlled growth of MgH2/Mg nano/microstructures via hydriding chemical vapor deposition (HCVD), wherein magnesium vapor was deposited on a substrate at different temperatures ranging from 225 °C to 600 °C and H2 pressures ranging from 1 to 4 MPa. The products obtained after heating for 7, 13, and 20 h were identified by XRD and observed by SEM. The shape, size, and purity of the products strongly depended on the experimental conditions, which were classified according to the P-T equilibrium diagram for MgH2. The diagram showed six distinct areas for the products MgH2 and/or Mg having the following structures: fine and coarse powder, dendrite, root-like structure, straight and curved fibers, irregular bulk structure, and hexagonal and spherical structures. The diagram can be used quite effectively for controlling the shape of MgH2 and/or Mg, and this may lay the foundation for the mass production of nano/microsized MgH2/Mg for use in hydrogen storage or batteries.
資源タイプ
学術雑誌論文
出版タイプ
Accepted Manuscript
PISSN
1528-7483
EISSN
1528-7505
NCID
AA1150352X
関連情報 (isVersionOf)
出版社版DOI
https://doi.org/10.1021/cg100856n