引用本文:
方向明, 李凤仪, 夏克坚, 秦中. 硝基苯气相加氢催化剂Cu/SiO2的改性研究[J]. 应用化学,
1997, 14(2): 57-59.
Citation: Fang Xiangming, Li Fengyi, Xia Kejiang, Qing Zhong. Effect of Cr and Mo on Vapor-Phase Hydrogenation Catalysts Cu/SiO2 for Nitrobenzene[J]. Chinese Journal of Applied Chemistry, 1997, 14(2): 57-59.
Citation: Fang Xiangming, Li Fengyi, Xia Kejiang, Qing Zhong. Effect of Cr and Mo on Vapor-Phase Hydrogenation Catalysts Cu/SiO2 for Nitrobenzene[J]. Chinese Journal of Applied Chemistry, 1997, 14(2): 57-59.
English
Effect of Cr and Mo on Vapor-Phase Hydrogenation Catalysts Cu/SiO2 for Nitrobenzene
Abstract:
Cu/SiO2 catalysts modified by Cr2O3 and MoO3 have been characterized with a continuous fixed-bed reactor. The influence of Cr2O3 and MoO3 on the surface properties and active site of catalysts has also been studied with TPR, XPS and XRD. The results show that catalytic properties of catalysts modified by Cr and Mo are improved remarkably and Cr2O3 and MoO3 in the catalysts have the property of donating electrons towards Cu particles. Adding proper amounts of Cr, Mo to catalysts can increase the dispersity of Cu particles and the stability of catalysts.
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Key words:
- nitrobenzene
- / phenylamine
- / hydrogenation catalyst
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