| 摘要 |
Hierarchical porous material comprises at least two spherical elementary particles, where the at least one of the spherical particles comprise a mesostructured silicon oxide based matrix having a mesoporous diameter of 1.5-30 nm, having amorphous walls and microporous thickness of 1.5-50 nm, and the spherical particles has a maximum diameter of 200 microns. An independent claim is included for the preparation of the material comprising preparing a clear solution containing precursor elements of zeolite, such as structuring agent, at least a silica precursor and optionally at least a precursor of an element X comprising aluminum (preferred), iron, boron, indium and gallium, mixing at least one surfactant and the clear solution into a solution, where the volume ratio of inorganic to organic material is 0.26:4, spraying the solution by aerosol obtained in the mixing step for the formation of spherical droplets, drying the droplets, and eliminating the structuring agent and the surfactant to obtain an amorphous material with hierarchical porosity in the range of microporosity, mesoporosity and organized within the range of mesoporosity. |
