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SiO(2)@MnO(x)@Na(2)WO(4)@SiO(2) core–shell-derived catalyst for oxidative coupling of methane
SiO(2)@MnO(x)@Na(2)WO(4)@SiO(2) 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 Na(2)WO(4). The SiO(2)@MnO(x)@Na(2)WO(4)@SiO(2) core...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9057211/ https://www.ncbi.nlm.nih.gov/pubmed/35515149 http://dx.doi.org/10.1039/d0ra05081d |
Sumario: | SiO(2)@MnO(x)@Na(2)WO(4)@SiO(2) 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 Na(2)WO(4). The SiO(2)@MnO(x)@Na(2)WO(4)@SiO(2) 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 Na(2)WO(4) derived from confined core–shell structures. |
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