2013 Fiscal Year Final Research Report
NPSERS of the High Index Planes of Pt
| Project/Area Number |
23350002
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Physical chemistry
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| Research Institution | Chiba University |
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Principal Investigator |
HOSHI Nagahiro 千葉大学, 工学(系)研究科(研究院), 教授 (30238729)
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| Co-Investigator(Kenkyū-buntansha) |
NAKAMURA Masashi 千葉大学, 大学院・工学研究科, 准教授 (70348811)
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| Co-Investigator(Renkei-kenkyūsha) |
IKEDA Katsuyoshi 北海道大学, 大学院・理学研究科, 准教授 (50321899)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | 燃料電池 / 酸素還元反応 / 単結晶電極 / 表面増強ラマン分光法 / 白金酸化物 |
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| Research Abstract |
Raman band of PtO has been detected using nanoparticle surface enhanced Raman spectroscopy (NPSERS). NPSERS is measured on Pt(100) and Pt(110) electrodes in 0.1 M HF solution. Pt(100) has the lowest activity for the ORR, whereas Pt(110) has the highest activity in the low index planes. A band is detected around 500 cm-1. This band is assigned to PtO. The band intensity of PtO in O2 saturated solution is higher than that in Ar saturated solution on Pt(100). On Pt(110), however, the band intensity in O2 satureted solution is as high as that in Ar saturated one. These facts support that PtO deactivates the ORR on Pt(100) electrode.
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