Ice surface processes: tunneling reactions and isotope fractionation
| Project/Area Number |
21200048
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| Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research a proposed research project)
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| Allocation Type | Single-year Grants |
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| Research Field |
Geochemistry/Astrochemistry
Atomic/Molecular/Quantum electronics
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| Research Institution | Hokkaido University |
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Principal Investigator |
WATANABE Naoki 北海道大学, 低温科学研究所, 教授 (50271531)
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| Co-Investigator(Kenkyū-buntansha) |
HIDAKA Hiroshi 北海道大学, 低温科学研究所, 助教 (00400010)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥30,940,000 (Direct Cost: ¥23,800,000、Indirect Cost: ¥7,140,000)
Fiscal Year 2011: ¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000)
Fiscal Year 2010: ¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000)
Fiscal Year 2009: ¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
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| Keywords | 氷表面反応 / トンネル反応 / 同位体分別 / 星間分子 / 星間塵 |
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| Research Abstract |
Ice surface reactions relevant to chemical evolution and deuterium fractionation were experimentally investigated. Activation energies for ice-surface diffusion of H and D atoms were determined. It was found that effective mass of reaction system is a control-factor of tunneling reactions. The reactivities of tunneling reactions related to deuterium fraction of formaldehyde can be well explained by the effective masses. A novel route of CO_2 formation on the ice surface was found.
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Report
(4 results)
Research Products
(141 results)
