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Method for preparing spherical material with hierarchical porosity, comprising metal particles trapped in a mesostructured matrix
Method for preparing spherical material with hierarchical porosity, comprising metal particles trapped in a mesostructured matrix
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机译:具有分层孔隙率的球形材料的制备方法,该球形材料包括捕获在介孔结构基质中的金属颗粒
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摘要
A process is described for the preparation of an inorganic material with a hierarchical porosity in the micropore and mesopore domains. The material has at least two elementary spherical particles having a maximum diameter of 200 microns. The process comprises: a) preparing a solution containing zeolitic nanocrystals with a maximum nanometric dimension equal to 60 nm based on silicon and/or precursor elements of proto-zeolitic entities based on silicon; b) mixing, in solution, metallic particles or at least one metallic precursor of metallic particles, a surfactant and the solution obtained in accordance with a) such that the ratio of the volumes of inorganic and organic materials, Vinorganic/Vorganic, is 0.29 to 0.50; c) aerosol atomization of the solution obtained in b) resulting in formation of spherical droplets; d) drying the droplets; g) eliminating the template and surfactant.
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