Perovskite-type mixed oxides as catalytic material for NO removal

Perovskite-type mixed oxides, with ABO(3) or A(2)BO(4) structure. are promising materials as-catalysts for NO removal due to their low cost, high thermal stability and of course, good catalytic performances. Their unique structural properties (e.g. A- and B-site cations could be replaced by a foreign one without destroying the matrix structure) make it possible to study the correlations between structure properties and catalytic performances. in this work the effects of solid-state and electrochemical properties of perovskite-type catalyst on NO removal activity is reviewed. Also, current experiments regarding the catalytically active site and the reaction mechanism of NO removal on perovskite-type mixed oxides are compared and discussed. (C) 2009 Elsevier B.V. All rights reserved.