SiO2@MnOx@Na2WO4@SiO2 core？shell-derived catalyst for oxidative coupling of methane
- SiO2@MnOx@Na2WO4@SiO2 core？shell-derived catalyst for oxidative coupling of methane
- 서동진; 최재욱; 하정명; 박라희; 조예림; Kwang Ho Song
- Issue Date
- RSC advances
- VOL 10, NO 62-37756
- SiO2@MnOx@Na2WO4@SiO2 core– shell catalysts were prepared and their fabrication was confirmed using transmission electron microscopy. The formation of Mn-based nanosheets on the silica spheres is important for the deposition of nanoscopic Na2WO4. The SiO2@MnOx@Na2WO4@SiO2 core– shell catalysts were used for the oxidative coupling of methane at a temperature of 700– 800 °C at which the nanostructures were completely destroyed. Although the core– shell structures did not survive the high-temperature oxidative coupling of methane, the selective production of olefins and paraffins can be attributed to highly dispersed Na2WO4 derived from confined core– shell structures.
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