%0 Journal Article %T Impeded solid state reactions and transformations in ceramic catalysts supports and catalysts %A Ern£¿ E. Kiss %A Goran C. Boskovic %J Processing and Application of Ceramics %D 2012 %I University of Novi Sad %X Impeded chemical reactions and impeded polymorphous transformation in materials are discussed, as desired effects, for stabilization of ceramic catalyst supports and ceramic based catalysts. This paper gives a short overview about the possibilities of slowing down the aging processes in ceramic catalyst supports and catalysts. Special attention is given to alumina and titania based catalysts. %K Ceramic based catalysts %K Solid state reactions %K Polymorphous transformation %U http://www.tf.uns.ac.rs/publikacije/PAC/pdf/PAC%2018%2001.pdf