| 학회 |
한국공업화학회 |
| 학술대회 |
2020년 가을 (10/28 ~ 10/30, 광주 김대중컨벤션센터(Kimdaejung Convention Center)) |
| 권호 |
24권 1호 |
| 발표분야 |
포스터-정밀화학 |
| 제목 |
Tailoring the Nanostructures and Activities of Bifunctional Carbon Electrocatalysts for Zn-Air Batteries |
| 초록 |
It is important to control the nanostructures of carbon-based electrocatalysts in Zn-air batteries due to the strong dependency of their activities on physical and chemical structures. Herein, an Oxygen-Accelerated Solvothermal Radical Reaction (OASRR) was devised to synthesize bifunctional carbon electrocatalysts for oxygen electrocatalysis in Zn-air batteries. The physical and chemical structures of carbon electrocatalysts were tuned by adjusting a combination of organic precursors and Co ions in the OASRR; nanoparticulate cobalt doped carbon nanosheet (CoNP-CN-1) and atomic Co-doped hollow carbon sphere (ACo-CN-2) showed outstanding electrocatalytic activities in ORR and OER. The computational simulations revealed that the carbon on the backside of the Co cluster-doped carbon sheet was the active site for the reactions. The Zn-Air battery assembled with CoNP-CN-1 and ACo-CN-2 showed a superior performance with greater stability compared with the battery prepared by Pt/C and RuO2. |
| 저자 |
박정현, 이치호, 주종민, 이준형, 임다빈, 이상욱, 김종호
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| 소속 |
한양대 |
| 키워드 |
Molecular engineering; Zn-Air battery
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| E-Mail |
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