XRD & XPS Study on the BaF2 Promoted Sm2O3-LaF3 Catalysts

Ji Zhong LUO Hui Lin WAN

引用本文: Ji Zhong LUO,  Hui Lin WAN. XRD & XPS Study on the BaF2 Promoted Sm2O3-LaF3 Catalysts[J]. Chinese Chemical Letters, 1997, 8(1): 83-86. shu
Citation:  Ji Zhong LUO,  Hui Lin WAN. XRD & XPS Study on the BaF2 Promoted Sm2O3-LaF3 Catalysts[J]. Chinese Chemical Letters, 1997, 8(1): 83-86. shu

XRD & XPS Study on the BaF2 Promoted Sm2O3-LaF3 Catalysts

  • 基金项目:

    This work is supported by the National Natural Science Fundation of China. The authors wish to thank Dr. Yuan. KOU and Dr. Bing. ZHANG (State key laboratory of Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Pysics, The Chinese Academy of Sciences) for XPS measurement and analyses.

摘要: Sm2O3-LaF3 and BaF2 promoted Sm2O3-LaF3 catalysts shown good catalytic performance for the Oxidative Dehydrogenation of Ethane(ODE).XRD and XPS characterizations of the catalysts show the structure defects,which may be produced by the partial exchange of anions and cations,enhance the electron donating ability and increase the surface adsorbed oxygen concentration,thus should be favorable to improve the catalytic activity.However,the higher concentration of surface adsorbed oxygen is unfavorable for the ethene selectivity.

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  • 收稿日期:  1996-10-21
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