引用本文:
李铭岫, 宋天乐, 杨述韬, 王心葵, 张志新, 周敬来. 添加Tm对VPO催化剂性能的影响[J]. 物理化学学报,
1995, 11(08): 734-737.
doi:
10.3866/PKU.WHXB19950813
Citation: Li Ming-Xiu, Song Tian-Le, Yang Shu-Tao, Wang Xin-Kui, Zhang Zhi-Xin, Zhou Jing-Lai. Influence of Thulium Doped VPO Catalyst on Characterization of Catalyst[J]. Acta Physico-Chimica Sinica, 1995, 11(08): 734-737. doi: 10.3866/PKU.WHXB19950813
Citation: Li Ming-Xiu, Song Tian-Le, Yang Shu-Tao, Wang Xin-Kui, Zhang Zhi-Xin, Zhou Jing-Lai. Influence of Thulium Doped VPO Catalyst on Characterization of Catalyst[J]. Acta Physico-Chimica Sinica, 1995, 11(08): 734-737. doi: 10.3866/PKU.WHXB19950813
English
Influence of Thulium Doped VPO Catalyst on Characterization of Catalyst
Abstract:
Phase composition, surface characterization and catalytic performance of VPO and thulium doped VPO catalysts were investigated by means of NH3-TPD, XPS,XRD and IR. Experimental results showed that when Tm/V (atomic ratio) ＜0.10, both Bronsted and Lewis acidities on the surface of VPO catalysts with the addition of thulium were stronger than those of VPO catalyst, the doped catalyst accelerated the dehydrogenation step of the oxidation reaction of n-butane. Conversion of n-butane and selectivity to maleic anhydride were enhanced. While Tm/V≧0.10, the surface acidity of the catalysts was decreased and the activity of catalyst was dropped.
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Key words:
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Thulium
- / VPO catalyst
- / n-Butane
- / Maleic anhydride
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