Dimethyl Ether Oxidation over Copper Ferrite Catalysts

The depletion of fossil energy sources and the legislation regarding emission control demand use alternative fuels rapid progression aftertreatment technologies. study dimethyl ether (DME) catalytic oxidation is important in this respect, as DME a promising clean fuel at same time VOC pollutant present tail gases industrial processes. In work, copper ferrite catalysts synthesized via citrate complexation method have been evaluated oxidation. N2-physisorption, XRD, H2-TPR, XPS were employed for characterization mixed oxide catalysts. spinel phase was detected all samples accompanied by gradual decrease bulk CuO upon increase iron content, with latter never vanishing completely. Fe0.67Cu0.33 catalyst exhibited highest activity oxidation, attaining approximately 4-fold higher rate compared to respective pure oxides. enhanced performance attributed specific surface area its redox properties. Highly dispersed species developed owing formation phase. DME-TPD/TPSR experiments showed that lattice oxygen can oxidize preadsorbed lower temperature than other which agreement H2-TPR findings.