Interaction of lanthanum with catalytic silica supports

  1. S. Bernal 1
  2. J.J. Calvino 1
  3. J.M. Rodríguez-Izquierdo 1
  4. H. Vidal 1
  1. 1 Departamento de Química Inorgánica. Universidad de Cádiz. Apartado 40 . Puerto Real . 11510. Spain.
Revue:
Journal of Rare Earths

ISSN: 1002-0721

Année de publication: 1991

Volumen: 2

Pages: 834-837

Type: Article

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Résumé

A series of silica supported lanthana s amples, with La2o3 weight loadings rang i ng from 7.8% to 75%, have been prepared and characterized . XRD, Raman s pectroscopy, XPS and TEM studies demonstrate the formation of a well dispersed , amorphous , lanthanum containing phase . The surface basicity of t he samples was gradually modified as the lant ha na loading increased.