Synthesis and characterization of MTiO3 (M = Mg, Ca, Sr, Ba) sol-gel

Multiple oxide titanates were prepared via the sol-gel method by the reaction of an alcoholic solution of titanium n-butoxide, Ti(OC4H9)4, with nitrate solutions, M(NO3)2 (M = Mg, Ca, Sr, Ba) at room temperature. The amorphous gels so obtained under acidic conditions were calcined at temperatures be...

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Bibliographic Details
Published in:Journal of materials chemistry 1995, Vol.5 (3), p.509-512
Main Authors: MORENO, J, DOMINGUEZ, J. M, MONTOYA, A, VICENTE, L, VIVEROS, T
Format: Article
Language:English
Subjects:
Chemistry
Colloidal state and disperse state
Exact sciences and technology
General and physical chemistry
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Summary:Multiple oxide titanates were prepared via the sol-gel method by the reaction of an alcoholic solution of titanium n-butoxide, Ti(OC4H9)4, with nitrate solutions, M(NO3)2 (M = Mg, Ca, Sr, Ba) at room temperature. The amorphous gels so obtained under acidic conditions were calcined at temperatures between 700 and 900 C to obtain high purity crystalline MTiO3 powders. The samples were characterised by powder XRD, SEM, EDS, TG, DTA and BET surface area measurements. The stability and large surface area obtained for the Sr and Ba compounds make then suitable for use as catalyst supports. 20 refs.
ISSN:0959-9428
1364-5501
DOI:10.1039/JM9950500509