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has been cited by the following article:

• TITLE: Relationship between Cr-Al Interaction and the Performance of Cr-Al2O3 Catalysts for Isobutane Dehydrogenation

  AUTHORS: Deren Fang, Jinbo Zhao, Shang Liu, Limei Zhang, Wanzhong Ren, Huimin Zhang

  KEYWORDS: Isobutane Dehydrogenation, Cr/Al2O3, Cr-Al Interaction, Catalyst, Mechanism

  JOURNAL NAME: Modern Research in Catalysis, Vol.4 No.2, April 22, 2015

  ABSTRACT: A series of catalysts were prepared using the kneading molding method and the impregnation method as well as the dry mix method by using different raw materials. By using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and temperature-programmed reduction (TPR) techniques, we studied the relationship between the catalyst performance and the Cr-Al interaction in the catalytic dehydrogenation of isobutane. The results demonstrated that the Cr-Al interaction in the catalyst had a direct influence on the catalytic activity and the selectivity of isobutene. The catalysts prepared using the kneading molding method had higher catalytic activity and isobutene selectivity than those prepared using the dry mix method. By comparison, XRD, XPS, and TPR results showed that the greater the Cr-Al interaction in the catalyst was, the higher the catalytic activity was. Here, we propose a mechanism of isobutane dehydrogenation.