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Shape-Controlled Growth of MgH2/Mg Nano/Microstructures Via Hydriding Chemical Vapor Deposition
| Title: | Shape-Controlled Growth of MgH2/Mg Nano/Microstructures Via Hydriding Chemical Vapor Deposition |
| Authors: | Zhu, Chunyu Browse this author | | Hosokai, Sou Browse this author | | Matsumoto, Itoko Browse this author | | Akiyama, Tomohiro Browse this author →KAKEN DB |
| Keywords: | Hydrogen storage | | Magnesium hydride | | Nanostuctures | | Crystal growth | | Hydriding chemical vapor deposition |
| Issue Date: | 2010 |
| Publisher: | American Chemical Society |
| Journal Title: | Crystal Growth & Design |
| Volume: | 10 |
| Issue: | 12 |
| Start Page: | 5123 |
| End Page: | 5128 |
| Publisher DOI: | 10.1021/cg100856n |
| Abstract: | 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. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/48525 |
| 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: 朱 春宇
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