Title of article :
Regularities of solid-phase interaction of tin and molybdenum oxides: Catalytic properties
Author/Authors :
Dao ، Kien Cuong - Ivanovo State University of Chemistry and Technology , Il’in ، Alexander Aleksandrovich - Ivanovo State University of Chemistry and Technology , Rumyantsev ، Ruslan Nikolaevich - Ivanovo State University of Chemistry and Technology , Uzhevskaya ، Ulyana Sergeevna - Ivanovo State University of Chemistry and Technology , Il’in ، Alexander Papvlovich - Ivanovo State University of Chemistry and Technology , Rumyantseva ، Taisiya Andreevna - Ivanovo State University of Chemistry and Technology
Abstract :
The interaction in the system of SnO2 and h-MoO3 prepared by their joint mechanical activation in a roller-ring vibratory mill was investigated. A series of catalysts was prepared with SnO2: h-MoO3 molar ratio 1:1; 1:2.3; 2.3:1 and 5.7:1. The catalysts were characterized by various techniques including X-ray phase, X-ray diffraction (XRD) and synchronous thermal analysis, scanning electron microscopy (SEM), BET method. An important effect of the introduction of molybdenum atoms into the structure of SnO2 was lattice defect. Heat treatment of the mechanically activated mixture at a temperature of 600–750 ℃ resulted in obtaining crystalline Sn(MoO4)2. The catalytic activity of the samples was investigated by the oxidative dehydrogenation of methanol. The results reported that varying the SnO2:MoO3 ratio allows adjusting the selectivity of the methanol conversion process over methyl formate and dimethyl ether.
Keywords :
Solid solution , SnO2 , h , MoO3 , Sn(MoO4)2 , Mechanical activation , Catalytic properties
Journal title :
Iranian Journal of Catalysis
Journal title :
Iranian Journal of Catalysis
