中文摘要：

制备了Ni3V2O8，Ni2V2O7，NiV2O6催化剂，进行了XRD，BET，H2-TPR，XPS和电导等表征，并测试了这三种结构催化剂对丙烷氧化脱氢制丙烯反应的催化性能，分析了影响催化性能的因素．实验结果表明，当丙烷的转化率为10％时，在p一型半导体Ni3V2O8和Ni2V2O7催化剂上丙烯的选择性为69．13％和70．21％，而在n-型半导体NiV2O6上，丙烯的选择性为64．41％，表明p-型半导体Ni3V2O8和Ni2V2O7的催化性能优于n-型半导体NiV2O6的催化性能。XPS实验结果表明，这可能与p-型半导体正钒酸镍（Ni3V2O8）和焦钒酸镍（Ni2V2O7）催化剂表面含较多O^-氧物种和V^4＋有关．

英文摘要：

Catalysts Ni3V2O8, Ni2V2O7, NiV2O6 were prepared and characterized by X-ray diffraction （XRD） , BET, n2-TPR, XPS and conductivity measurement. Their catalytic performance for the oxidative dehydrogenation of propane to propene was investigated. The results show that the selectivities to propene were 69. 13% , 70. 21% and 64. 41% over p-type semiconductor Ni3V2O8, Ni2V2O7 and n-type NiV2O6 catalysts with 10% propane conversion, respectively. These results suggest that p-type semiconductor catalysts have a better catalytic performance than n-type ones, that C3H6 selectivity has a good correlation with the electrical conductivity and that selectivity depends on the existence of Ni3V2O8 or Ni2V2O7 phase. XPS results illustrate that high catalytic performance on p-type semiconductor Ni3V2O8 and Ni2V2O7 was related to the abundant oxygen species O^- and V^4＋ existing over these catalysts.