Comparative study of two wet chemical methods of BaSnO3 synthesis:

YASSER HALIL OCHOA MUÑOZ; MIGUEL PONCE; JORGE ENRIQUE RODRÍGUEZ PÁEZ

POWDER TECHNOLOGY

ELSEVIER SCIENCE SA

Lugar: Amsterdam; Año: 2015 vol. 279 p. 86 - 95

0032-5910

Ceramic powders of pure barium stannate (BaSnO3) were synthesized using two wet chemical methods: controlled precipitation and polymeric precursor (Pechini). The obtained ceramic powders were characterized using IR spectroscopy, DTA?TGA, XRD and SEM. Using the precipitation and Pechini methods, single phase BaSnO3 powders were achieved at temperatures of 1250 °C and 1000 °C respectively?substantially lower than the temperatures required for conventional synthesis (N1350 °C). Leading from these results, the physicochemicalmechanisms that lead to BaSnO3 formation in the processes of synthesis employed in thiswork are proposed. This constitutes important information both for determining the advantages and disadvantages of each method and for controlling the characteristics of the powder end product.