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.
Bibliographical noteFunding Information:
This work was supported by the C1 Gas Renery Program of the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (2015M3D3A1A01064900).
© The Royal Society of Chemistry.
ASJC Scopus subject areas
- Chemical Engineering(all)