| 학회 |
한국재료학회 |
| 학술대회 |
2019년 봄 (05/15 ~ 05/17, 평창 알펜시아 리조트) |
| 권호 |
25권 1호 |
| 발표분야 |
C. 에너지 재료 분과 |
| 제목 |
3 Dimensional structured Iron Cobalt Nitride/N- doped graphene form Hybrid composite as efficient active electrocatalysts |
| 초록 |
In catalyst reaction, bi-functional catalysts for oxygen evolution reaction and oxygen reduction reaction require the same efficiency and stability as noble metal catalysts. In addition, further studies are needed to reduce overpotential and improve energy conversion efficiency. Nitrogen-doped carbon and transition metal (Cobalt and Iron) has been demonstrated as promising catalyst due to the synergetic effect. In particular, cobalt materials are good for OER properties and iron materials are good for ORR properties, so metal alloys utilizing them are attracting attention as bi-functional catalysts. Herein, we successfully synthesized CoFe@N-doped graphene form hybrid composite for bi-functional electrocatalyst material through two-step process with hydrothermal method and annealing. The morphology of precursor and CoFe@graphene form hybrid composite was analyzed by FE-SEM. The crystallinity of sample was confirmed by XRD. graphene form was confirmed by Raman spectroscopy. Furthermore, we analyzed electrochemical properties of synthesized sample. |
| 저자 |
정동인1, 최형욱1, 윤대호1, 강봉균1, Mohit Kumar2
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| 소속 |
1성균관대, 2전자부품(연) |
| 키워드 |
graphene; transition metal; bi-functional catalyst; nitrogen
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| E-Mail |
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