INVESTIGADORES
MORENO Mario Sergio Jesus
artículos
Título:
Study of Intermediate Oxides in SnO Thermal Decomposition
Autor/es:
M.S. MORENO; R.C.MERCADER ; A.G.BIBILONI
Revista:
JOURNAL OF PHYSICS CONDENSED MATTER
Editorial:
IOP PUBLISHING LTD
Referencias:
Lugar: Londres; Año: 1992 vol. 40 p. 351 - 355
ISSN:
0953-8984
Resumen:
Two series of room temperature x-ray and Mossbauer spectroscopy (ms) measurements were performed oil powder SnO samples after 1 h annealing in air and Ar at temperatures between 473 and 1073 K in 100 K steps. Complementary measurements on one SnO sample treated in vacuum in this sequence were performed after the thermal treatment at 773 K. In the thermal evolution between SnO and SnO2 the results show the presence of an intermediate oxide not only in the Ar and vacuum annealed samples but also in those: annealed in air. The Mossbauer parameters of the 2+ and 4+ states for the intermediate oxide were determined. The results were consistent with a reaction rate dependent on the oxygen partial pressure.
