Characterization of highly porous nanoparticle deposits by permeance measurements

► Porous nanoparticle deposits synthesized by filtration of flame-made aerosols. ► Potential applications as particle filters and high surface area catalyst coatings. ► Structural characterization by non-destructive permeance technique. ► Good comparison between calculated (permeance) and measured porosity (SEM). ► Filter-cakes similar in structure to thermophoretically deposited cakes.