Abstract

The thermal behaviour of [Ba(C 2H 6O 2) 4][Sn(C 2H 4O 2) 3] used as a BaSnO 3 precursor, and its phase evolution during thermal decomposition are described. The initially formed transient barium tin oxycarbonate phase disintegrates into BaCO 3 and SnO 2, reacting subsequently to BaSnO 3. The existence of the intermediate oxycarbonate phase is evidenced by Fourier transformed infrared (FT-IR), X-ray powder diffraction (XRD) and electron energy loss spectroscopy (EELS (ELNES)) investigations.

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