ChemInform Abstract: Physico-Chemical Properties of Copper Substituted Lanthanum Manganate and Their Catalytic Activity for H2O2 Decomposition and CO Oxidation.
Abstract
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract
B-site Cu substituents, LaMn1-xCuxO3 (x = 0 to 0.8), of the perovskite- type mixed ABO3 oxide, LaMnO3, are prepared by various method. Their catalytic activity for the title reactions increases with increase of Cu up to x ≅0.5 and decrease at higher x values. The increase of the catalytic activity is attributed to an increase of surface excess oxygen, of the specific surface area and of the Mn4+ content and a decrease of the pore size by the replacement. The conductivity also increases with substitution of Cu2+ for Mn3+.
