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A series of Sn 0.99 V 0.01 O 2 powders were prepared and annealed at different temperatures: 450°C, 600°C, 800°C, 1000°C. The XRD measurements confirm the substitution of Sn 4+ ions by vanadium ions. A secondary phase of V 2 O 5 was evidenced by Raman spectroscopy only in the samples annealed at 800 and 1000°C. The FTIR spectroscopy reveals the presence...
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