Metal oxides modified NiO catalysts for oxidative dehydrogenation of ethane to ethylene
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Date
2014-06
Publication Type
Journal Article, Journal Article
ETH Bibliography
no
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Abstract
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 NiO materials have small particle size, larger surface area, and higher reduction temperature in contrast to pure NiO. The introduction of group IV, V and VI transition metals into NiO decreases the catalytic activity in ethane ODH. However, the ethylene selectivity is enhanced with the highest level for the Ni–W–O and Ni–Ti–O catalysts. As a result, these two catalysts show improved efficiency of ethylene production in the ethane ODH reaction.
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published
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Journal / series
Volume
228
Pages / Article No.
58 - 64
Publisher
Elsevier
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Subject
Ethane oxidative dehydrogenation; NiO catalyst; Doped metal oxide; Ethylene production
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02293 - Catalysis Hub / Catalysis Hub