Enhanced dispersion of Cr nanoparticles over nanostructured ZrO2-doped ZSM-5 used in CO2-oxydehydrogenation of ethane

The CO2-oxydehydrogenation of ethane was investigated over a series of Cr impregnated ZSM-5-ZrO2 nanocatalysts varying in zirconia content with the aim of improving catalytic performance of Cr/ZSM-5 catalyst in the ODH reaction and also exploring the appropriate ZrO2 content. It was found that ZrO2 addition to ZSM-5 strongly modifies catalytic performance of Cr/ZSM-5, although the changes in the catalytic behaviour depend on the ZrO2 content. The highest activity was reached on Cr supported ZrO2-doped ZSM-5 containing 10 wt% zirconia.273