Loading patent…
AssigneeMonash University
InventorsMary Susan Jean Gani, Hans-Jurgen Wirth, Marie Isabel Aguilar, Milton Thomas William Hearn, Donald George Vanselow, Philip Hong Ning Cheang, Kjell-Ove Eriksson
Estimating the term…
Porous zirconia or zirconium-containing particles, methods of making such particles and methods of using such particles including modifications to the surface of the particles are described. The method comprises heating zirconia particles to provide a substantially homogeneously liquid melt, quenching the particles of melt to effect spinodal decomposition to provide quench particles of a silica rich phase and a zirconia rich phase, annealing the quenched particles to provide non porous solid particles of zirconia and silica and, leaching the silica from these particles to produce porous solid zirconia particles comprising a three dimensionally substantially continuous interpenetrating network of interconnected pores.
A porous zirconia composition comprising a zirconia or zirconium-containing particle, said particle comprising a substantially continuous three dimensional interpenetrating network of interconnected pores, said pores being of substantially constant diameter throughout their length.
A porous zirconia composition comprising a zirconia or zirconium-containing particle, said particle comprising a substantially continuous three dimensional interpenetrating network of interconnected pores, said pores being of substantially constant diameter throughout their length, in which the surface of the porous zirconia or zirconium-containing particle is chemically modified by hydroxylation of the surface to impart a greater number of hydroxide groups to the surface.
A porous zirconia composition comprising a zirconia or zirconium-containing particle, said particle comprising a substantially continuous three dimensional interpenetrating network of interconnecting pores, said pores being of substantially constant diameter throughout their length in which the surface of the porous zirconia or zirconium-containing particles is chemically modified by attaching one or more of the following onto the surface of the particle;
Composition consisting essentially of porous zirconia particles having functional molecules or groups attached to the surface of the particles, said functional molecules or groups being attached via a silane group which has previously reacted with surface hydroxyl groups on the surface of the zirconia particles.
Dependencies are inferred from the claim text.