引用本文:
照日格图, 葛庆杰, 李文钊, 于春英, 贾美林, 徐恒泳. 丙烷氧化脱氢Ni-V-O催化剂的原位电导[J]. 物理化学学报,
2000, 16(09): 798-803.
doi:
10.3866/PKU.WHXB20000908
Citation: Zhao Ri-GeTu, Ge Qing-Jie, Li Wen-Zhao, Yu Chun-Ying, Jia Mei-Lin, Xu Heng-Yong. In Situ Electrical Conductivity Study of Ni-V-O Catalysts Used in Oxidative Dehydrogenation of Propane[J]. Acta Physico-Chimica Sinica, 2000, 16(09): 798-803. doi: 10.3866/PKU.WHXB20000908
Citation: Zhao Ri-GeTu, Ge Qing-Jie, Li Wen-Zhao, Yu Chun-Ying, Jia Mei-Lin, Xu Heng-Yong. In Situ Electrical Conductivity Study of Ni-V-O Catalysts Used in Oxidative Dehydrogenation of Propane[J]. Acta Physico-Chimica Sinica, 2000, 16(09): 798-803. doi: 10.3866/PKU.WHXB20000908
丙烷氧化脱氢Ni-V-O催化剂的原位电导
English
In Situ Electrical Conductivity Study of Ni-V-O Catalysts Used in Oxidative Dehydrogenation of Propane
Abstract:
Electrical conductivity of Ni- V- O series catalysts was measured under different sequential gaseous atmospheres and at different temperatures, their conduction type was detemined and their catalytic behaviour in oxidative dehydrogenation of propane to propene was investigated. It was found that p- type semiconductor catalysts have a better catalytic behaviour than n- type ones. In reaction mixture, the higher the electrical conductivity of p- type semiconductor, the higher its catalytic activity, the lower electrical conductivity of n- type semiconductor, the higher its catalytic activity. These are due to different mechanism of the formation of the partial charged oxygen species on the surface of catalysts.
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Key words:
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Propane
- / Oxidative dehydrogention
- / Propyene
- / Electrical conductivity
- / Ni-V-O catalyst
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