2009 Fiscal Year Final Research Report
Surface modification of metal nanoparticles by high energy ion beam for applications to fuel-cell catalysts
| Project/Area Number |
20760600
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Nuclear engineering
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| Research Institution | Japan Atomic Energy Agency |
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Principal Investigator |
YAMAKI Tetsuya Japan Atomic Energy Agency, 量子ビーム応用研究部門, 研究副主幹 (10354937)
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| Project Period (FY) |
2008 – 2009
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| Keywords | イオンビーム / 電子励起効果 / 金属ナノ微粒子 / 酸素還元触媒 / 燃料電池 / 表面改質 / サイクリックボルタモグラム / 回転ディスク電極法 |
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| Research Abstract |
Metal nanoparticles were prepared on a glassy carbon plate by a sputtering method and then irradiated with high energy ion beams at room temperature. The nanoparticles would be modified by 0.38 MeV proton (H^+) beam-induced electronic excitation so that they have a higher surface activity. The mechanism of this irradiation effect seems to be rather complicated, but it can be discussed in relation to a change in the interfacial crystal structure during the irradiation.
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