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The “wet” sol–gel and “dry” solid-state methods were used to prepare Ni–Ta–O mixed oxide catalysts. The resulting Ni–Ta oxides exhibit high activity and selectivity for the low temperature oxidative dehydrogenation of ethane to ethylene. The Ta/(Ni+Ta) atomic ratios (varying from 0 to 0.11 in “wet” sol–gel method, and from 0 to 0.20 in “dry” solid-state method) as well as the preparation methods used...
The sol–gel method was applied to the synthesis of Zr, Ti, Mo, W, and V modified NiO based catalysts for the ethane oxidative dehydrogenation reaction. The synthesized catalysts were characterized by XRD, N2 adsorption, SEM and TPR techniques. The results showed that the doping metals could be highly dispersed into NiO domains without the formation of large amount of other bulk metal oxide. The modified...
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