| نویسندگان | سجاد مبینی دمنه-فرشته مشکانی-مهران رضائی |
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| تاریخ انتشار | ۲۰۱۷-۴-۰۱ |
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| نمایه نشریه | SCOPUS |
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چکیده مقاله
Nanocrystalline Cu–Cr mixed oxides catalysts with different molar ratios of Cu/Cr were synthesized by the hydrothermal method and employed in the catalytic CO oxidation. The physicochemical properties of these catalysts were characterized by powder X-ray diffraction (XRD), N2 adsorption (BET), temperature programmed reduction (TPR), scanning and transmission electron microscopy (SEM and TEM) methods Also, for a better comparison of catalysts the reaction rate and TOF values were calculated at two different temperatures. The results represented that the powders were mainly consisted of macropores with wide pore-size distribution. The catalytic results showed that the activity of the sample with a Cu/Cr molar ratio of 2 was significantly higher than the other samples due to the formation of CuCr2O4 spinel structure, which was more active than the CuO and Cr2O3 phases in CO oxidation reaction.