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In relation to this article, we declare that there is no conflict of interest.
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Received December 30, 2023
Revised January 19, 2024
Accepted January 19, 2024
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Ce/Zr 비율에 따른 Ni/CeO2-ZrO2 촉매가 메탄의 수증기 개질 반응에서 미치는 영향

Effect of Ce/Zr Ratios on Ni/CeO2-ZrO2 Catalysts in Steam Reforming of Methane Reaction

Chungbuk National University
Korean Chemical Engineering Research, February 2024, 62(1), 125-131(7), 10.9713/kcer.2024.62.1.125 Epub 1 January 2024
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본 연구에서는 제조된 Ni/CexZr1-xO2 촉매를 허니컴 구조의 금속 모노리스 구조체 표면에 코팅하여 수증기 메탄 개

질 반응에 대한 활성을 연구하였다. Ce/Zr의 비율을 달리한 지지체를 합성하여 수증기 메탄 개질 반응에서의 거동을

확인하였으며, Ni 함량이 촉매 활성에 미치는 영향을 분석하기 위해 다양한 Ni 함량의 촉매를 제조하였다. 촉매의 특

성은 XRD, BET, TPR 및 SEM으로 분석하였으며 TPR 분석에서 활성 금속 Ni이 CeO2-ZrO2 혼합물 지지체와 강한

상호작용으로 Ni-Ce-Zr 산화물을 형성하였음을 나타내었다. 15 wt% Ni/Ce0.80Zr0.20O2 촉매는 수증기 메탄 개질 반응

에서 가장 높은 활성 및 안정성을 보였다. 우수한 산소저장 및 공여 특성의 CeO2와 열적 특성의 ZrO2를 복합소재로

제조하여 활성과 안정성이 향상된 촉매를 합성하였다.

In this study, synthesized Ni/CexZr1-xO2 catalysts were coated on the surface of honeycomb metalic monoliths to investigate catalytic activity in steam reforming of methane reactions. Supports with varying Ce/Zr ratios were synthesized to observe their behavior in the reforming reaction, and catalysts with Ni contents ranging from 5 wt% to 20 wt% were prepared to analyze the effect of Ni loading contents on catalytic activity. The catalysts were characterized by XRD, BET, TPR, and SEM. The TPR analysis indicated the formation of Ni-Ce-Zr oxide with a strong interaction between the active metal Ni and CeO2-ZrO2 support. The 15 wt% Ni/Ce0.80Zr0.20O2 catalyst exhibited the highest activity and stability in the steam reforming of methane reaction. Catalysts with enhanced activity and stability were synthesized by manufacturing composite materials using excellent oxygen storage and donor properties of CeO2 and the thermal properties of ZrO2.


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