2016 Fiscal Year Final Research Report
Electrocatalytic Activity of Orientated Metal Nanoparticles
| Project/Area Number |
15K13668
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Functional solid state chemistry
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| Research Institution | Nagoya University |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Keywords | 酸素還元反応 / 電極触媒 / 異方性ナノ粒子 / 金八面体ナノ粒子 / コアシェル構造 / プラズモン / 配向制御 / アンダーポテンシャルデポジション |
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| Outline of Final Research Achievements |
Octahedral Au-core Pt-shell (Au@Pt) nanoparticles were successfully prepared via a galvanic replacement of Cu monolayer underpotentially deposited on Au core with a Pt monolayer. Thus-obtained octahedral Au@Pt nanoparticles showed larger electrocatalytic activity for oxygen reduction reaction compared with spherical Au@Pt or commercial Pt nanoparticles. The visible light irradiation to Au@Pt nanoparticles-immobilized electrodes enlarged a cathodic current of oxygen reduction reaction, suggesting that the electrocatalytic activity of Pt shell layer was enhanced by the photoexcitation of localized surface plasmon resonance peak of octahedral Au-core particles
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| Free Research Field |
ナノ材料合成
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