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Layered mixed tin-titanium phosphates

Published online by Cambridge University Press:  31 January 2011

Camino Trobajo ,
Maria L. Rodríguez ,
Marta Suárez ,
José R. García ,
Julio Rodríguez ,
José B. Parra ,
Miguel A. Salvadó ,
Pilar Pertierra  and
Santiago García-Granda
Camino Trobajo
Affiliation:
Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, 33071 Oviedo, Spain
Maria L. Rodríguez
Affiliation:
Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, 33071 Oviedo, Spain
Marta Suárez
Affiliation:
Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, 33071 Oviedo, Spain
José R. García*
Affiliation:
Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, 33071 Oviedo, Spain
Julio Rodríguez
Affiliation:
Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, 33071 Oviedo, Spain
José B. Parra
Affiliation:
Instituto Nacional del Carbón, C.S.I.C. Apartado 73, 33080 Oviedo, Spain
Miguel A. Salvadó
Affiliation:
Departamento de Química Física y Analítica, Universidad de Oviedo, 33071 Oviedo, Spain
Pilar Pertierra
Affiliation:
Departamento de Química Física y Analítica, Universidad de Oviedo, 33071 Oviedo, Spain
Santiago García-Granda
Affiliation:
Departamento de Química Física y Analítica, Universidad de Oviedo, 33071 Oviedo, Spain
*
a) Author to whom correspondence should be addressed.
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Abstract

Mixed crystalline tin-titanium phosphates with variable tin-to-titanium molar ratio have been prepared by precipitation of soluble salts of the metal (IV) with phosphoric acid and refluxing the amorphous solids in 17 M H3PO4. The new materials are characterized by chemical textural and thermal analysis and x-ray powder diffraction. The tin-titanium phosphates are solid solutions showing an isomorphic substitution of tin by titanium in the α-tin phosphate lattice and tin substitution in the γ-titanium phosphate lattice. In both cases, the solubility is partial. The coexistence of both saturated phases is observed in samples of composition between the solubility limits.

Type
Articles
Information
Journal of Materials Research , Volume 13 , Issue 3 , March 1998 , pp. 754 - 759
Copyright
Copyright © Materials Research Society 1998

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