Methods of depositing inorganic particles

Abstract

Methods for providing inorganic deposits, such as refractory oxide nanoparticles, on a surface, such as a porous surface of a substrate, such as a porous substrate having interconnected pores that permit gas flow therethrough, the method comprising: combining inorganic particles, an organic solvent, a silane binder, and an organic acid such as citric acid into a suspension; aerosolizing at least a portion of the suspension into droplets; evaporating the organic solvent from the droplets to form agglomerates of the primary particles such as nanoparticles, the organic solvent, the silane binder, and the citric acid from the droplets; depositing the agglomerates onto the substrate; and curing the silane binder on the substrate to form a network of inorganic particles bound to the substrate as inorganic deposits.

Dependencies are inferred from the claim text.