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Mesoporous metal oxide catalysts for Preferential Oxidation of CO in H2-Rich Stream
이정양,이정호,박진서,김지만 한국공업화학회 2019 한국공업화학회 연구논문 초록집 Vol.2019 No.1
The Mesoporous Mn-Co-Ce mixed oxide catalysts were investigated for CO preferential oxidation (CO PROX) reaction, which was synthesized via nano-replication method using a hard template of KIT-6. The catalysts were characterized by X-ray diffraction, N<sub>2</sub> adsorptiondesorption, H<sub>2</sub>-temperature programmed reduction, CO-temperature programmed desorption and X-ray photoelectron spectroscopy. All of the catalysts had uniform mesopores and high surface areas. The distinct catalytic properties of these well-characterized mesoporous materials were demonstrated for preferential CO oxidation. Among them, the Mn:Co:Ce=23.75:71.25:5 system presented the best CO conversion at low temperatures and the best selectivity toward CO<sub>2</sub>. The received mesoporous Mn-Co-Ce mixed oxide possessed excellent textural properties. The structural stability was mainly attributed to the strong and stable interactions between cobalt oxides and manganese oxides.
이정양,이정호,박진서,김지만 한국공업화학회 2020 한국공업화학회 연구논문 초록집 Vol.2020 No.-
The Mesoporous Mn-Co-Ce mixed oxide catalysts were investigated for CO preferential oxidation (CO PROX) reaction, which was synthesized via nano-replication method using a hard template of KIT-6. The catalysts were characterized by X-ray diffraction, N<sub>2</sub> adsorption-desorption, H<sub>2</sub>-temperature programmed reduction, CO-temperature programmed desorption and X-ray photoelectron spectroscopy. All of the catalysts had uniform mesopores and high surface areas. The distinct catalytic properties of these well-characterized mesoporous materials were demonstrated for preferential CO oxidation. Among them, the MCC-2 system presented the best CO conversion at low temperatures and the best selectivity toward CO<sub>2</sub>. The received mesoporous Mn-Co-Ce mixed oxide possessed excellent textural properties. The structural stability was mainly attributed to the strong and stable interactions between cobalt oxides and manganese oxides.