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Study on reaction mechanism of dehydrogenation of magnesium hydride by in situ transmission electron microscopy
| Title: | Study on reaction mechanism of dehydrogenation of magnesium hydride by in situ transmission electron microscopy |
| Authors: | Isobe, Shigehito Browse this author →KAKEN DB | | Ono, Akifumi Browse this author | | Yao, Hao Browse this author | | Wang, Yongming Browse this author | | Hashimoto, Naoyuki Browse this author | | Ohnuki, Somei Browse this author →KAKEN DB |
| Keywords: | chemical analysis | | chemical interdiffusion | | hydrogen | | hydrogen storage | | magnesium compounds | | nanoparticles | | pyrolysis | | thermally stimulated desorption | | transmission electron microscopy |
| Issue Date: | 31-May-2010 |
| Publisher: | American Institute of Physics |
| Journal Title: | Applied Physics Letters |
| Volume: | 96 |
| Issue: | 22 |
| Start Page: | 223109 |
| Publisher DOI: | 10.1063/1.3442910 |
| Abstract: | In situ observation on dehydrogenation of MgH2 was performed by using transmission electron microscope (TEM). The dehydrogenation of MgH2 with 1 mol % Nb2O5 and formation of nanosized Mg particles were observed at 150℃. Nb2O5 was not confirmed in diffraction patterns and TEM images probably due to wide dispersion. On MgH2 with 10 mol % Nb2O5, the high resolution TEM could recognize the dehydrogenation at the interface between MgH2 and Nb2O5, proceeding with increasing temperature. This suggests that hydrogen atoms could diffuse from MgH2 phase to the interface between Mg and Nb2O5, resulting in formation of hydrogen molecules at the interface. |
| Rights: | Copyright 2010 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Appl. Phys. Lett. 96, 223109 (2010) and may be found at https://dx.doi.org/10.1063/1.3442910 |
| Type: | article |
| URI: | http://hdl.handle.net/2115/43131 |
| 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: 礒部 繁人
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