Part I : Binary Oxide Catalysts of Alumina–Rare Earth Oxides

Janakiamma Jayasree, Cadavallore S. Narayanan
1995 Bulletin of the Chemical Society of Japan  
Binary oxides of aluminium with rare earths like Pr, Nd, Sm and Eu have been prepared by coprecipitation using NH J from corresponding nitrates. Surface characteristics and acid-base properties have been determined by DTA, SEM, ESCA, MAS21 AINMR, IR and titrimetric methods. Electronegativity of the rare earth oxide influences the acidity and basicity of the binary oxide. Both BrOnsted and Lewis acid sites are observed on catalyst surface. Higher number of Lewis acid sites are observed on AIP J
more » ... observed on AIP J -NdP J surface.
doi:10.1246/bcsj.68.84 fatcat:7ty32r6hvnc3rf67v2uwlcn6uu