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Ordered Mesoporous Cu–Co–CeO2 Catalyst for Water-Gas Shift Reaction at High Temperature

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Highly ordered mesoporous Cu–Co–CeO2 composite catalysts with different Cu/Co ratios were synthesized via a nano-replication method using a mesoporous silica template with cubic Ia3d mesostructure, and the ternary oxide catalysts, thus obtained, were used for a water-gas shift reaction. Combined characterization results, using X-ray diffraction, electron microscopy, N2 adsorption, and temperature-programmed reduction analysis techniques, reveal that the incorporation of copper and cobalt into the ceria lattice not only promotes the formation of structure defects, but also increases the redox properties. Furthermore, some CoO x clusters, formed on the catalysts surface, which enhanced the catalytic activity at high temperature. Among the series of composite catalysts, the Cu0.1Co0.1Ce0.8O2 catalyst showed the highest catalytic performance with a zero methane yield.
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Keywords: Cu–Co–CeO2; Mesoporous Materials; Nano-Replication; Ternary Metal Oxide; Water-Gas Shift Reaction

Document Type: Research Article

Affiliations: Department of Chemistry, Sungkyunkwan University, Suwon, 16419, Korea

Publication date: 2017-11-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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