2013 Fiscal Year Final Research Report
Ion Beam and Electronic Structure Analyses of Tiny Metal-Hydride Specimens Synthesized in High-Pressure Supercritical Water
| Project/Area Number |
23560009
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Applied materials science/Crystal engineering
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| Research Institution | Nagoya University |
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Principal Investigator |
SODA Kazuo 名古屋大学, 工学(系)研究科(研究院), 教授 (70154705)
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| Co-Investigator(Kenkyū-buntansha) |
KATO Masahiko 名古屋大学, 大学院工学研究科, 助教 (70222429)
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| Co-Investigator(Renkei-kenkyūsha) |
HASEGAWA Masashi 名古屋大学, 大学院工学研究科, 教授 (20218457)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 水素化物分析 / マイクロビーム硬X線光電子分析 / マイクロイオンビーム分析 / 超臨界水中金属水素化物合成 |
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| Research Abstract |
Materials synthesized under high pressures may show new crystal structures and related properties which are different from those synthesized under normal pressure. In this study, we have clarified the niobium hydride formation by characterizing the hydrogen concentration, electronic structure, and chemical states of tiny specimens of niobium hydrides which were recently synthesized in supercritical water under high pressures by laser heating. We have developed a capillary-focusing ion beam analyzing method for small specimens and determined the hydrogen concentrations of the newly-synthesized specimens. We have also employed micro-beam hard X-ray photoelectron spectroscopy to the newly-synthesized specimens and clarified the chemical bond formation between hydrogen and niobium through analyses of their electronic structures and chemical states.
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[Presentation] Angle-resolved Hard X-ray Photoemission Study of Nb Hydride Formation in 10-GPa Supercritical Water2013
Author(s)
Kazuo Soda, Hiroki Kondo, Kanta Yamaguchi, Masahiko Kato, Tatsuhito Shiraki, Ken Niwa, Keiji Kusaba, Masashi Hasegawa, Kozina Xeniya, Eiji Ikenaga
Organizer
The 5th Int. Conf. on Hard X-ray Photoelectron Spectroscopy (HAXPES 2013)
Place of Presentation
Uppsala, Sweden
Year and Date
20130617-20
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