Patent ID: 7608559
Filing Date: 2009-10-27
Classification: B01D,B01J,C01G,C01P,Y02T

Abstract:
1. A method for producing a heat-resisting compound oxide, comprising: synthesizing first oxide particles or their precursor particles in micelles in a microemulsion; charging said first oxide particles or their precursor particles to a potential inverse to that of second oxide particles or their precursor particles, wherein said second oxide particles or their precursor particles have a smaller diameter than said first oxide particles or their precursor particles; absorbing said second oxide particles or their precursor particles onto said first oxide particles or their precursor particles; and sintering said first oxide particles or their precursor particles and said second oxide particles or their precursor particles; wherein the method results in said second oxide particles being carried on said first oxide particles; wherein the obtained surface area is enlarged by the second oxide particles blocking or suppressing the sintering of the first oxide particles.