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Early Transition Metal Oxides and a Pinch of Salt: New Synthetic Routes to Titanates and Niobates

Published online by Cambridge University Press:  15 February 2011

M. J. Geselbracht ,
R. J. Scarola ,
D. Ingram ,
C. Green  and
J. H. Caldwell
M. J. Geselbracht
Affiliation:
Department of Chemistry, Reed College, Portland, OR 97202
R. J. Scarola
Affiliation:
Department of Chemistry, Reed College, Portland, OR 97202
D. Ingram
Affiliation:
Department of Chemistry, Reed College, Portland, OR 97202
C. Green
Affiliation:
Department of Chemistry, Reed College, Portland, OR 97202
J. H. Caldwell
Affiliation:
Department of Chemistry, Reed College, Portland, OR 97202
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Abstract

Molten salts have traditionally been used as recrystallizing solvents for the crystal growth of mixed metal oxides. In recent years, many examples of the direct preparation of mixed metal oxides from molten salt solutions have been reported. We have been exploring the use of chloride melts as a reaction media to prepare complex early transition metal oxides. Specific examples of new synthetic routes to interesting titanates and niobates will be presented. In one case, we have prepared a series of layered niobate perovskite solid acids from molten salts at temperatures well below those traditionally used in solid state syntheses. In the second case, we have discovered a new synthetic route to a poorly characterized reduced calcium titanate that is otherwise very difficult to make. The synthesis and characterization of these two classes of compounds will be described.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 453: Symposium R – Solid State Chemistry of Inorganic Materials , 1996 , 147
Copyright
Copyright © Materials Research Society 1997

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References

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