Low temperature catalytic performance of nanosized Ti-Ni-O for oxidative dehydrogenation of propane to propene

Abstract Nanosized Ti Ni O catalysts prepared by a modified sol–gel method have been investigated in the oxidative dehydrogenation of propane (ODP) to propene. At 300 °C the yield to propene of 12.1% was obtained on 9.1 wt.% Ti Ni O catalyst with the selectivity of 43%. The continued variety of lattice parameter and variation of chemical value of nickel and titanium ion on the surface indicates that there are strong interactions of TiO 2 and NiO. The decreased low temperature oxygen desorption and the weaker reducibility seems to be responsible for the decreased activity and enhanced selectivity of propane oxidative dehydrogenation over Ti Ni O catalysts.