乙烷催化氧化脱氢制乙烯的研究——Ⅱ.催化剂的表征分析

Study of Catalytic Oxydehydrogenation of Ethane to Ethylene——Ⅱ. Characterisation of Catalyst

使用X-光衍射分析,电子顺磁共振分析和X-光光电子能谱分析等手段对乙烷催化氢化脱氢催化剂进行了表征分析,结果表明,催化剂的活性晶相是θ_(MO)(V)型化台物[Mo_(1-x)(V.Nb)_x]_5O_(14)(0<x<0.1),在对催化剂表征分析的基础上提出了催化剂的活性中心。

The characterization and the analysis for a series of catalysts for ethane oxydehydrogenation have been conducted by means of X-diffraction, EPR and XPS etc. The results indicate that the active phase of the catalyst is [Mo_(1-x)(V·Nb)_x]_5· O_(14)(0<x<0.1)of the compound of the type θ_(Mo)(V). Based on the results of the characterization and the analysis, the active site of the catalyst has been pro- posed.