2011 Fiscal Year Final Research Report
Creation of metal-nanoparticle catalysts by using ion-beam-induced lattice defects in metal oxides for fuel-cell applications
| Project/Area Number |
22760678
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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 独立行政法人日本原子力研究開発機構, 量子ビーム応用研究部門, 研究主幹 (10354937)
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| Project Period (FY) |
2010 – 2011
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| Keywords | イオンビーム / 電子励起効果 / 金属ナノ粒子 / 格子欠陥 / 酸素還元 / 燃料電池 / 担体 / 触媒・化学プロセス |
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| Research Abstract |
Platinum(Pt) nanoparticles as catalyst for the oxygen reduction reaction(ORR) in fuel cells were prepared on a cerium dioxide(CeO_2) support in which lattice defects were formed by ion-beam-induced high electronic excitation. According to the electrochemical analyses, the ORR activity was higher for the Pt nanoparticles on the irradiated CeO_2 substrate than for those on the non-irradiated one, implying a certain connection with the formation of Ce^<3+> ions or oxygen vacancies in overlapping tracks.
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