| Project/Area Number |
10650815
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
工業物理化学
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| Research Institution | Osaka Prefecture University |
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Principal Investigator |
INOUE Hiroshi Osaka Prefecture University, College of Engineering, Associate Professor, 工学部, 助教授 (00213174)
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| Co-Investigator(Kenkyū-buntansha) |
IWAKURA Chiaki Osaka Prefecture University, College of Engineering, Professor, 工学部, 教授 (00029183)
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| Project Period (FY) |
1998 – 1999
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| Project Status |
Completed (Fiscal Year 1999)
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| Budget Amount *help |
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 1999: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 1998: ¥2,100,000 (Direct Cost: ¥2,100,000)
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| Keywords | Hydrogen storage metal / Palladium sheet / Atomic hydrogen / Hydrogenation / Dehydrogenation / Selectivity / Palladium black / Diffusion coefficient of hydrogen / α,β-不飽和アルデヒド |
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| Research Abstract |
The result obtained in this study for three years are summarized as follows.
1. In the hydrogenation of alkyne on a palladized Pd sheet, the selectivity of alkane, which was evaluated as the ratio of the production rate of alkane to alkane, increased with an increase in current for the production of atomic hydrogen.
2. In the hydrogenation of α,β-unsaturated aldehyde with C=C and C=O bonds on a palladized Pd sheet, the C=C bond was solely hydrogenated to saturated aldehyde. On Pt-loaded palladized Pd sheet, not only C=C bond but also C=O were hydrogenated to saturated aldehyde and unsaturated alcohol, suggesting that the distribution of product depended on the kind of the loaded metal.
3. In the reduction of NィイD22ィエD2O gas on a palladized Pd sheet, NィイD22ィエD2 was solely produced. In the case of the reduction of nitrate solution, nitrite and NィイD22ィエD2 were consecutively produced on a Cu-laded palladized Pd sheet while ammonia was solely produced on a Ni-loaded palladized Pd sheet.
4. New dehydrogenation system was constructed by combining the dehydrogenation of formic acid with potentiostatic oxidation of atomic hydrogen permeating through the palladized Pd sheet. From a theoretical analysis of time course of the oxidation current of permeated atomic hydrogen, the diffusion coefficient of hydrogen was evaluated and it was in good agreement with the previously evaluated value.
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