ＭＯＦを基盤としたカーボンアロイ触媒および高性能非白金燃料電池の設計・開発
| Project/Area Number |
15F15377
|
|---|
| Research Category |
Grant-in-Aid for JSPS Fellows
|
| Allocation Type | Single-year Grants |
|---|
| Section | 外国 |
|---|
| Research Field |
Reaction engineering/Process system
|
|---|
| Research Institution | Tokyo Institute of Technology |
|---|
Principal Investigator |
山口 猛央 東京工業大学, 科学技術創成研究院, 教授 (30272363)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
UNNI SREEKUTTAN 東京工業大学, 科学技術創成研究院, 外国人特別研究員
|
|---|
| Project Period (FY) |
2015-11-09 – 2018-03-31
|
| Project Status |
Completed (Fiscal Year 2017)
|
| Budget Amount *help |
¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 2017: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2016: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2015: ¥600,000 (Direct Cost: ¥600,000)
|
|---|
| Keywords | Solid Alkaline Fuel Cell / Oxygen Reduction / Metal Organic Framework / Electrocatalyst / ZIF / Fuel Cell / Pt-Free Catalysts / Imidazolate Framework |
|---|
| Outline of Annual Research Achievements |
Development of cost-effective electrocatalyst for oxygen reduction reaction (ORR) for low-temperature fuel cells (Solid proton/alkaline conducting membrane fuel cells) is one of the major priority research worldwide. In the present case, we have synthesized trimetallic zeolitic imidazole framework (t-ZIF) and used it as a single precursor for the preparation of the precious metal-free catalyst. t-ZIF contain Co, Fe, and Zn as metal centres and 2-methylimidazole as a ligand. During carbonization, t-ZIF produces nitrogen and Fe/Co-Nx doped carbon/ carbon nanotubes alloyed with metal/metal oxide particles encased inside the carbon structures (FeCo-NCZ). Since the electrocatalyst developed from a single precursor, a uniform distribution of active reaction centres (Fe-Nx, Co-Nx, pyridinic/graphitic coordinated nitrogen, etc.) on the surface of the electrocatalyst is obtained. Highly porous nature of the carbon achieved by the leaching-out of Zn at high temperature. The peculiar morphology and reasonably good surface area assist better mass transport and fast electron transport. ORR performance of FeCo-NCZ in alkaline (0.1 M KOH) condition shows the onset potential and half-wave potential of 1.04 V and 0.91 V vs. RHE respectively, which is more positive to commercial Pt/C catalyst. FeCo-NCZ reduces oxygen molecule through direct 4 e- pathways and shows reaction kinetic similar to Pt/C. More importantly, FeCo-NCZ displays high fuel tolerance and electrochemical stability in alkaline condition even at 60 oC. Our study shows FeCo-NCZ is a suitable alternative to Pt/C.
|
| Research Progress Status |
29年度が最終年度であるため、記入しない。
|
| Strategy for Future Research Activity |
29年度が最終年度であるため、記入しない。
|
Report
(3 results)
Research Products
(3 results)
