Low temperature catalytic performance of nanosized Ti-Ni-O for oxidative dehydrogenation of propane to propene
Date
2005-09Author
Wu, Ying
He, Yiming
Chen, Tong
Weng, Weizheng
翁维正
Wan, Huilin
万惠霖
Collections
- 化学化工-已发表论文 [14469]
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 degrees 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 TiO2 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. (c) 2005 Elsevier B.V. All rights reserved.