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- W1979735712 abstract "The oxidative coupling of methane (OCM) couples methane molecules, which are the major components of natural gas, to form ethane and ethylene in order to produce fuels and chemicals. Because of the high reaction temperature (700–900 °C) to obtain high yields of desirable products, the OCM process has been difficult to commercialize. We have developed a less energy-intensive OCM process that exhibits higher activity at a lower reaction temperature using Mg–Ti mixed oxide-supported Na/W/Mn catalysts. The catalyst consisting of Mg/(Mg + Ti) = 0.5 (mol/mol) exhibited the highest C2 hydrocarbons yields (i.e., 18.1% at 825 °C and 16.5% at 775 °C) among the mixed oxide-supported catalysts, which were higher than those of the conventional SiO2-supported catalyst particularly at a low temperature of 775 °C (12.8%). Based on catalyst characterization by transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), UV–vis spectroscopy (UV–vis), O2-temperature programmed desorption (O2-TPD), and CO2-temperature programmed desorption (CO2-TPD), the improved catalytic activity of the mixed oxide-supported catalysts was attributed to more active surface lattice O atoms." @default.
- W1979735712 created "2016-06-24" @default.
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- W1979735712 date "2013-08-01" @default.
- W1979735712 modified "2023-09-27" @default.
- W1979735712 title "Oxidative coupling of methane to C2 hydrocarbons on the Mg–Ti mixed oxide-supported catalysts at the lower reaction temperature: Role of surface oxygen atoms" @default.
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- W1979735712 doi "https://doi.org/10.1016/j.apcata.2013.05.020" @default.
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