SiO2@MnOx@Na2WO4@SiO2 core-shell-derived catalyst for oxidative coupling of methane
- Authors
- Park, La-Hee; Jo, Ye Rim; Choi, Jae-Wook; Suh, Dong Jin; Song, Kwang Ho; Ha, Jeong-Myeong
- Issue Date
- 14-10월-2020
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- RSC ADVANCES, v.10, no.62, pp.37749 - 37756
- Indexed
- SCIE
SCOPUS
- Journal Title
- RSC ADVANCES
- Volume
- 10
- Number
- 62
- Start Page
- 37749
- End Page
- 37756
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/52456
- DOI
- 10.1039/d0ra05081d
- ISSN
- 2046-2069
- Abstract
- 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 degrees 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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