Effect of additives doping on catalytic properties of Mg3(VO4)2 catalysts in oxidative dehydrogenation of cyclohexane
作者： M. Jin , P. Lu , G.X. Yu , Z.M. Cheng , L.F. Chen
DOI: 10.1016/J.CATTOD.2012.09.019
关键词:
摘要: Abstract Effects of additives comprising alkali and alkaline earth metals (Li, Na, K Ca) introduced to Mg3(VO4)2 on their structures, physicochemical properties the catalytic behaviors in oxidative dehydrogenation cyclohexane were investigated. The characterization experimental results showed that additive does not affect markedly structure catalyst, but blocks active sites hinders reducibility species thus decreasing activity. Moreover, could enhance selectivity cyclohexene by enhancing nucleophilicity, redox property as well type number oxygen catalyst surface. doped catalysts give activity orders K-
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