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首页> 外文期刊>Crystal growth & design >Pressure-Induced Synthesis and Evolution of Ceria Mesoporous Nanostructures with Enhanced Catalytic Performance
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Pressure-Induced Synthesis and Evolution of Ceria Mesoporous Nanostructures with Enhanced Catalytic Performance

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Evaluating the effect of pressure for the formation of nanomaterials is significant in solvothermal methods. In this study, a pressure-dependent template-free solvothermal method is developed to controllably synthesize four kinds of uniform CeO2 mesoporous nanostructures in a single reaction system, i.e., mesoporous nanospheres, nanoporous mesocrystals, hollow nanospheres, and nanowires. They all comprise small nanoclusters (3-5 nm). Properly adjusting the reaction pressure allows for achieving the transition between them. Furthermore, the corresponding pressure-induced self-assembly (Ostwald ripening, reconstruction) mechanisms are proposed to illustrate the morphological evolution process. In addition, they also display large specific surface area and excellent catalytic activity for CO oxidation.

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