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Due to the excessive cost and scarcity of Pt metal, it is very vital to enhance the utilization efficiency and recovery yield of Pt-based catalysts. Herein, we employ a facile and simple approach to synthesize the hierarchical γ-Fe2O3 microflowers supported Pt, which is assembled from γ-Fe2O3 nanosheets as building blocks. Further analysis demonstrated that well-dispersed Pt nanoparticles with average...
Au/CeO 2 catalyst was prepared via a deposition–precipitation method and further pretreated in different atmospheres prior to CO oxidation. A reductive atmosphere pretreatment slightly improved the low-temperature activity of Au/CeO 2 . The greatest activity was achieved when Au/CeO 2 catalyst was subjected to an oxidative atmosphere followed by a reductive atmosphere pretreatment...
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