LOW-TEMPERATURE CATALYTIC PERFORMANCE OF NANOSTRUCTURED Ti–Ni–O PREPARED BY MODIFIED SOL-GEL METHOD

Nanosized Ti–Ni–O catalysts prepared by a modified sol–gel method had been investigated in the oxidative dehydrogenation of ethane and propane to the corresponding alkene. The best yield is obtained over the 9.1 wt% Ti–Ni–O catalyst. The results of catalyst characterization indicated that there is strong interaction between TiO2 and NiO. It is observed that a decline in temperature for low-temperature oxygen desorption and an augmentation in reduction difficulty of the catalysts would result in poor activity and enhanced alkene selectivity, respectively, over the Ti–Ni–O catalysts in the oxidative dehydrogenation reactions.