| 학회 |
한국공업화학회 |
| 학술대회 |
2021년 봄 (05/12 ~ 05/14, 부산 벡스코(BEXCO)) |
| 권호 |
25권 1호 |
| 발표분야 |
포스터-에너지저장·변환 |
| 제목 |
Electrospun Carbon Nanofibers with Embedded Co‐Ceria Nanoparticles for Efficient Hydrogen Evolution and Overall Water Splitting |
| 초록 |
In this study, simple electrospinning combined with pyrolysis were used to fabricate transition-metal-based-nanoparticle-incorporated carbon nanofiber (CNF) electrocatalysts for a hydrogen evolution reaction (HER) and overall water splitting. Co-CeO2 nanoparticle-incorporated carbon nanofibers (Co-CeO2@CNF) exhibit an outstanding HER performance with an overpotential of 92 mV. To evaluate their catalytic properties for the overall water splitting, Co-CeO2@CNF and Ni2Fe@CNF were used as the HER and OER electrocatalysts in an alkaline electrolyzer. These electrolyzer achieved an current density of 10 mA/cm2 by applying 1.587 V across the electrodes with a remarkably lower overpotential of 257 mV compared to that of an electrolyzer comprised of Pt/C and IrO2 electrodes (400 mV). Owing to the conformal incorporation of nanoparticles into the CNF, the electrocatalysts exhibit significant long-term durability over 70 h of overall water splitting. |
| 저자 |
우성원, 김기표, 유진우, 임병권
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| 소속 |
성균관대 |
| 키워드 |
electrospinning; transition metal-based electrocatalysts; overall water splitting
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| E-Mail |
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