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Structure Characterization and Catalytic Properties of Cr_2O_3 Doped with MgO Supported on MgF_2

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Goslar J., Wojciechowska M., Zieliński M., Tomska-Foralewska I., Przystajko W.
Acta Physica Polonica A
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2005
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vol. 108
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issue 2
323-330
EN
A characterization of double oxide systems containing Cr_2O_3 doped with MgO and supported on MgF_2 was carried out. The catalysts were prepared by impregnation and co-impregnation methods and characterized by the Brunauer-Emmett-Teller method, EPR, and temperature programmed reduction. The results proved the interactions between supported oxides and the presence of spinel-like phase after treatment at 400ºC. Magnesium oxide clearly influences the catalytic activity as well as selectivity of chromium catalysts supported on MgF_2. The MgO-Cr_2O_3/MgF_2 systems were active and selective in the reaction of CO oxidation at the room temperature and in the dehydrogenation of cyclohexene.
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