Aerogels and other porous solids in which surfaces of pores have chemical properties varying with depth below macroscopic surfaces prepared by sequences of chemical treatments. Porous glass or silica bead treated to make two depth zones having different chemical properties. Beads dropped along tube filled with flowing gas containing atomic oxygen, generated in microwave discharge. General class of materials treatable include oxides of aluminum, silicon, zirconium, tin, titanium, and nickel, and mixtures of these oxides. Potential uses of treated materials include chromatographic separations, membrane separations, controlled releases of chemicals, and catalysis.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Chemically Layered Porous Solids


    Beteiligte:
    Koontz, Steve (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1991-10-01



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Combustion of porous solids at reduced gravitational conditions

    Berlad, A. L. / Killory, J. | TIBKAT | 1979



    Simulation of porous carbon preform ablation in a chemically reacting environment

    Zibitsker, Aleksander L. / McQuaid, Joel A. / Fu, Rui et al. | AIAA | 2024


    Natural Convection in Rectangular Layered Porous Cavities

    Jik-Chang Leong / Feng Lai | AIAA | 2004


    Natural convection in horizontal-layered porous annuli

    Pan, C. P. / Lai, F. C. | AIAA | 1995