The Study of Ultrasonic Treatment Influence on the Physical–Chemical Properties of TiO2/SnO2 = 1:1 Composition

2020 
The influence of ultrasonic treatment (UST) during 2 h on the physico-chemical properties of TiO2/SnO2 with a molar ratio of oxides 1:1 was investigated. It was found that in a result of activation of the composition TiO2/SnO2 = 1:1 the anisotropic destruction of SnO2 with the formation of particles with the size about 50 nm proceeds. The study of TiO2/SnO2 = 1:1 samples structure by the TEM method shows the formation of nanodispersed ring-like particles after UST. The catalytic properties of TiO2/SnO2 = 1:1 sample were tested in ethanol partial oxidation. It was established that sonoactivated sample demonstrates a high activity and selectivity to acetic aldehyde at low temperatures (T < 185°C, S = 100%) and hydrogen at 360°C with a yield equal to 41%. Obtained data show a high catalyst activity during a long time using with hydrogen productivity (10 L/kgkat × h).
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