| 학회 |
한국화학공학회 |
| 학술대회 |
2019년 봄 (04/24 ~ 04/26, 제주국제컨벤션센터) |
| 권호 |
25권 1호, p.909 |
| 발표분야 |
촉매 및 반응공학(Catalysis and Reaction Engineering) |
| 제목 |
Highly active Ruddlesden-Popper catalyst with in situ grown Co-Ni alloy nanoparticles for efficient CO2 electrolysis to CO |
| 초록 |
We report the in situ grown Co-Ni alloy nanoparticles anchored on the Ruddlesden-Popper catalyst and its use as an effective catalyst for high temperature CO2 electrolysis in a solid oxide electrolysis cell (SOEC). This catalyst is simply obtained by directly reducing a perovskite-derivative of (La,Sr)(Co,Ni,Mn)O3 and the in situ exsolution of Co-Ni alloy nanoparticles are confirmed by use of XRD, SEM, TEM and EDS. The outstanding current density value of 660 mA/cm2 was accomplished at 1.3 V and 850 °C with no sign of degradation is indicated as observed by stability test. In situ exsolved Co-Ni alloy nanoparticles and the introduced oxygen vacancies resulted from the phase transition contributed to the enhanced catalytic activity. Therefore, these high current density and stability of catalyst developed in this study could give an opportunity to serve as the promising cathode material for the CO2 electrolysis reaction. |
| 저자 |
박성민, 김윤곤, 한현수, 윤원근, 최준일, 한정현, 김원배
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| 소속 |
POSTECH |
| 키워드 |
촉매 |
| E-Mail |
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| 원문파일 |
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