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Several nanosized catalysts Co 3 O 4 –CeO 2 with varying compositions were synthesized by a surfactant-template method and further promoted by a small amount of Pd (0.5 wt%). These catalysts exhibit uniform mesoporous structure and high surface area (>100 m 2 g −1 ). The Co 3 O 4 crystallites in these catalysts are encapsulated by nanosized...
The mesoporous catalysts La–Co–Ce–O were successfully prepared in one step by citric acid complexation-organic template decomposition method, which show large surface area (up to 157 m2/g), narrow pore diameter distribution (3.7∼3.9 nm), good thermal stability and high activity for CO and C3H8 oxidation. Based on the structural characterization results, it is found that the predominant Co phases are...
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