2015 Fiscal Year Annual Research Report
高効率を目指したカーボンナノチューブ／グラフェンベースの燃料電池触媒の構築
| Project/Area Number |
14J08220
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| Research Institution | Kyushu University |
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Principal Investigator |
金 菜リン 九州大学, 工学研究院, 特別研究員(PD)
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| Project Period (FY) |
2014-04-25 – 2016-03-31
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| Keywords | fuel cell / graphene / catalyst / gold / non-platinum / polymer / ORR / polybenzimidazole |
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| Outline of Annual Research Achievements |
The development of a non-Pt electrocatalyst with a high performance for the oxygen reduction reaction (ORR) is one of the central issues in polymer electrolyte fuel cells science. Au-nanoparticles (Au-NPs) with a diameter of <2 nm are one of the promising substitutes of Pt-NPs; however, it is still
a challenge to synthesize such a small-sized Au-NPs with a narrow diameter distribution on a carbon support without using capping agents. We here describe a facile method to deposit uniform Au-NPs (diameter = 1.6 nm and 3.3 nm) on the stacked-graphene (<10 layers) coated with poly[2,2′-(2,6 pyridine)-5,5′-bibenzimidazole] without using any capping agents. The obtained Au-NPs exhibit an excellent ORR activity with the onset potential at －0.11 V and －0.09 V (vs. Ag/AgCl) for 1.6 nm and 3.3 nm, respectively. On the other hand, inhomogeneous Au-NPs with 4.6 nm in average diameter shows the onset potential at －0.15 V (vs. Ag/AgCl).
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| Research Progress Status |
27年度が最終年度であるため、記入しない。
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| Strategy for Future Research Activity |
27年度が最終年度であるため、記入しない。
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