PROCEDURE TO PRODUCE A CONSTRUCTION OF THREE-DIMENSIONAL MACROPOROUS FILAMENTS BASED ON PHASE INVESTMENT AND CONSTRUCTION OBTAINED FROM THAT MODE.

摘要

A method for producing a three-dimensional macroporous filament construction having interconnected microporous filaments and a suitable morphology, said process comprising the steps of: a) preparing a suspension comprising particles of a predetermined material, a liquid solvent, one or more binders and optionally one or more dispersants, b) depositing said suspension in the form of filaments in a predetermined three-dimensional pattern thereby creating a porous structure based on three-dimensional filaments, c) inducing a phase inversion in which said filaments are transformed from a liquid state to a solid state by the steps of c1) putting said filaments during deposition of the filaments in contact with a non-solvent vapor, and c2) immersing the structure of step c1) in a non-solvent liquid, thereby creating a porous structure based on filaments that have a suitable filament morphology ada, d) heat treating the structure of step c) calcining and sintering said structure.