Abstract
Abstract The SnO 2 –CuSb 2 O 6 binary system plays a significant role in the SnO 2 –Sb 2 O 3 –CuO ternary system, delimiting the compositional ranges and their sensor and catalytic properties. The initial compositions expressed as (1− x ) SnO 2 – x CuSb 2 O 6 were treated both non-isothermally using DTA up to 1500 °C and iso-thermally at temperatures between 1000 and 1200 °C. Phase analysis of the samples was determined by XRD and IR spectroscopy. It was established that SnO 2 –CuSb 2 O 6 is a pseudobinary system with a solid solubility limit of the end members. The determined lattice parameters of the unit cell of the obtained rutile and trirutile solid solutions obeyed Vegard's rule. From IR spectral investigations it was inferred that Sn 4+ might be preferentially incorporated on Sb 5+ sites into the CuSb 2 O 6 lattice.
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