Elucidation of hydrogen absorption and desorption sites on palladium-gold alloy surfaces
Project/Area Number |
16K04957
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Thin film/Surface and interfacial physical properties
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Research Institution | The University of Tokyo |
Principal Investigator |
Ogura Shohei 東京大学, 生産技術研究所, 助教 (10396905)
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Research Collaborator |
FUKUTANI katsuyuki
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Project Period (FY) |
2016-04-01 – 2019-03-31
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Project Status |
Completed (Fiscal Year 2018)
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Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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Keywords | 水素 / 水素吸蔵材料 / 表面 / 表面・界面物性 / 合金 / 光脱離 / シミュレーション |
Outline of Final Research Achievements |
The purpose of this study was to elucidate the hydrogen absorption and desorption sites on palladium-gold alloy surfaces. By using the result that CO molecules block the hydrogen absorption and desorption sites, we elucidated the CO adsorption sites with the use of reflection-absorption infrared spectroscopy. From the results, we elucidated the hydrogen absorption and desorption sites at the atomic level. We also performed numerical simulations of thermal desorption spectra, and clarified the CO blocking mechanism.
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Academic Significance and Societal Importance of the Research Achievements |
水素の新しいエネルギーとしての利用には,水素の生成,純化,貯蔵,運搬などの過程が必要であり,純化と貯蔵の方法として水素吸蔵材料による水素吸収を利用した方法が研究されている.パラジウムは水素吸蔵材料の一つであるが,表面に吸着した分子により水素の吸収が阻害され,また水素の放出温度が室温以下であるという問題があった.本研究により水素吸収・放出における吸着分子の効果が明らかになり,表面制御による水素吸蔵材料の高性能化や分子の吸着・脱離を利用した水素放出温度の制御につながる重要な成果が得られた.
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Report
(4 results)
Research Products
(30 results)
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[Journal Article] Mechanism of gate dielectric degradation by hydrogen migration from the cathode interface2017
Author(s)
Y. Higashi, R. Takaishi, K. Kato, M. Suzuki, Y. Nakasaki, M. Tomita, Y. Mitani, M. Matsumoto, S. Ogura, K. Fukutani, K. Yamabe
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Journal Title
Microelectronics Reliability
Volume: 70
Pages: 12-21
DOI
Related Report
Peer Reviewed
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[Journal Article] Dynamics of the photoinduced desorption of nitric oxide molecules from the surface of pure and modified platinum2016
Author(s)
S. A. Khubezhov, I. V. Silaev, Z. S. Demeev, A. V. Ramonova, A. G. Kaloeva, I. V. Tvauri, G. S. Grigorkina, D. D. Kibizov, O. G. Ashkhotov, S. Ogura, D. Sekiba, K. Fukutani, T. T. Magkoev
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Journal Title
Russian Journal of Physical Chemistry A
Volume: 90
Issue: 7
Pages: 1489-1492
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Photoinduced conversion of carbon dioxide and water molecules to methanol on the surface of molybdenum oxide MoOx (x < 2)2016
Author(s)
I. V. Silaev, S. A. Khubezhov, A. G. Ramonova, G. S. Grigorkina, A. G. Kaloeva, Z. S. Demeev, A. P. Bliev, D. Sekiba, S. Ogura, K. Fukutani, T. T. Magkoev
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Journal Title
Technical Physics Letters
Volume: 42
Issue: 3
Pages: 271-273
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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