| Project/Area Number |
15K17898
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Energy-related chemistry
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| Research Institution | Kyushu University |
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Principal Investigator |
LYTH Stephen 九州大学, カーボンニュートラル・エネルギー国際研究所, 准教授 (50618824)
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| Research Collaborator |
SASAKI Kazunari Kyushu University, 12CNER Distinguished, Professor
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
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| Keywords | Electrochemistry / Catalysis / Nitrogen-doped carbon / Oxygen reduction / non-precious / Pt-free / Fe-N-C / Fuel Cells / fuel cells / PEFCs / non-PGM / oxygen reduction / nitrogen-doped carbon / durability / carbon / nitrogen-doped / foam / electrochemistry / platinum-free |
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| Outline of Final Research Achievements |
Template-free nitrogen-doped carbon foams with large surface area are used as a model system to study the oxygen reduction reaction in Pt-free electrocatalysts. Metal-free nitrogen doped carbon foams are synthesized and compared with iron-impregnated nitrogen-doped carbon foams. In acid medium the resulting Fe-N-C catalysts out-perform commercially available Pt-free catalysts due to excellent mass diffusion through the relatively large pores, but still do not compete with Pt/C. In alkaline medium the Fe-N-C catalysts out-perform both commercial Pt-free catalyst and Pt/C. Detailed materials characterization is performed to lend insight into the possible nature of the active sites. Detailed durability studies reveal the excellent stability of Pt-free catalysts in alkaline medium and post-durability transmission electron microscopy is used to investigate the degradation mechanisms.
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