| 학회 |
한국공업화학회 |
| 학술대회 |
2017년 봄 (05/10 ~ 05/12, 광주 김대중컨벤센센터(Kimdaejung Convention Center)) |
| 권호 |
21권 1호 |
| 발표분야 |
(무기재료1) 차세대 유무기 하이브리드 촉매 연구 개발 동향 I |
| 제목 |
Development of Biomimetic, High-Performance Electrocatalysts for Oxygen Reduction Reaction |
| 초록 |
Non-precious metal catalysts (NPMCs) have emerged as alternatives for expensive Pt-based electrocatalysts in oxygen reduction reaction (ORR). Among various NPMCs, M–N/C (M=Fe or Co) catalysts have been suggested as the most promising NPMCs. We present our recent efforts toward M–N/C ORR electrocatalysts that may resemble the structural feature of Nature’s ORR catalyst, cytochrome c oxidase. We have developed a general design strategy based on “silica-protective-layer-assisted” method that can preferentially generate ORR-active Fe–Nx sites towards highly efficient Fe-N/C electrocatalysts. We have also made efforts toward identifying new active species in M–N/C catalysts. We constructed archetypical hybrid catalysts by the reaction of an organometallic complex, [CoII(acac)2] (acac=acetylacetonate), with N-doped graphene-based materials. In this hybrid ORR catalyst, we could identify a new active species for the ORR: “Co-O4-N” structure. |
| 저자 |
주상훈 |
| 소속 |
울산과학기술원(UNIST) |
| 키워드 |
Electrocatalyst; ORR; Biomimetic; Non-precious metal catalyst
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| E-Mail |
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