引用本文:
李铭岫, 杨述韬, 宋天乐, 王心葵, 张志新, 周敬来. 掺杂Pr对VPO催化剂性质的影响[J]. 物理化学学报,
1997, 13(06): 548-553.
doi:
10.3866/PKU.WHXB19970613
Citation: Li Zhi-Xiu, Yang Shu-Tao, Song Tian-Le, Wang Xin-Kui, Zhang Zhi-Xin, Zhou Jing-Lai. Effect of Adding Pr on Properties of VPO Catalyst[J]. Acta Physico-Chimica Sinica, 1997, 13(06): 548-553. doi: 10.3866/PKU.WHXB19970613
Citation: Li Zhi-Xiu, Yang Shu-Tao, Song Tian-Le, Wang Xin-Kui, Zhang Zhi-Xin, Zhou Jing-Lai. Effect of Adding Pr on Properties of VPO Catalyst[J]. Acta Physico-Chimica Sinica, 1997, 13(06): 548-553. doi: 10.3866/PKU.WHXB19970613
掺杂Pr对VPO催化剂性质的影响
English
Effect of Adding Pr on Properties of VPO Catalyst
Abstract:
Influence of doping Pr on the characteristics of VPO catalyst was investigated by means of XRD, XPS, ESR, 31P NMR, NH3-TPD and IR techniques. The catalysts were used in the selective oxidation of n-butane to maleic anhydride. Experimental results showed that, when Pr/V(atomic ratio)=0.05,the amount of (VO)2P2O7 was increased and the surface acidity was enhanced, and the conversion of n-butane and the selectivity to maleic anhydride reached a maximum value respectively. While Pr/V≥0.10, the amount of(VO)2P2O7 and surface acidity were decreased and the activity of catalysts was reduced.
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Key words:
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Praseodymium
- / VPO catalyst
- / n-Butane
- / Maleic anhydride
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