2011 Fiscal Year Final Research Report
Study for the practical use of shape controlled nanoparticles
| Project/Area Number |
22710099
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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 |
Nanomaterials/Nanobioscience
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| Research Institution | Chiba University |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2011
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| Keywords | ナノ表面・界面 / ナノ粒子 / 電極触媒 |
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| Research Abstract |
The catalytic activity strongly depends on the atomic structure of the catalyst surface. Shape-controlled nano-particles, of which surfaces are composed of active structures, can reduce the amount of Pt loading in fuel cell. However, the dissolution of surface atoms of shape-controlled particles reduces the catalytic activities remarkably. Reproduction method of surface structure was investigated using rectangular wave potential pulse. The (110) facet, the active structure for the oxygen reduction reaction (ORR), was constructed on the cubic and cuboctahedral Pt particles by the potential pulse. The ORR activity of Pt particles was improved by the potential pulse.
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