| Project/Area Number |
24560853
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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 |
Structural/Functional materials
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| Research Institution | Kyushu University |
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Principal Investigator |
MATSUDA Junko 九州大学, カーボンニュートラル・エネルギー国際研究所, 助教 (00415952)
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| Co-Investigator(Kenkyū-buntansha) |
YOSHIDA Kenta 名古屋大学, 高等研究院, 助教 (10581118)
SHAO Huaiyu 九州大学, カーボンニュートラル・エネルギー国際研究所, 助教 (20614697)
LI Haiwen 九州大学, 水素エネルギー国際研究センター, 准教授 (40400410)
SASAKI Yukichi ファインセラミックスセンター, ナノ構造解析研究所, グループ長、主席研究員 (40426507)
AKIBA Etsuo 九州大学, 工学研究院, 教授 (90356345)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 水素吸蔵反応 / その場観察 / 環境制御型TEM / 環境制御型透過電子顕微鏡 |
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| Outline of Final Research Achievements |
In situ transmission electron microscopy (TEM) was performed to observe the hydrogenation of Mg-Ni films in a hydrogen atmosphere of 80-100 Pa. An aberration-corrected environmental TEM with a differential pumping system allows us to reveal the Angstrom-scale structure of the films in the initial stage of hydrogenation: first, nucleation and growth of Mg2NiH4 crystals with a lattice spacing of 0.22 nm in an Mg-rich amorphous matrix of the film occurs within 20 seconds after the start of the high-resolution observation, then crystallization of MgH2 with a smaller spacing of 0.15 nm happens after approximately 1 min. Our in situ TEM method is also applicable to the analysis of other hydrogen-related materials.
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