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Sr2Fe1.575Mo0.5O6- Promotes the Conversion of Methane to Ethylene and Ethane
Shiqi Song1,2, Lingting Ye1,3,4,5, Kui Xie1,2,3,4,5
1Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China.
Abstract:
Oxidative coupling of methane can produce various valuable products, such as ethane and ethylene, and solid oxide electrolysis cells (SOECs) can electrolyze CH4 to produce C2H4 and C2H6. In this work, Sr2Fe1.575Mo0.5O6- electrode materials were prepared by impregnation and in situ precipitation, and Sr2Fe1.5Mo0.5O6- was taken as a reference to study the role of metal-oxide interfaces in the catalytic process. When the Fe/Sr2Fe1.575Mo0.5O6- interface is well constructed, the selectivity for C2 can reach 78.18% at 850 °C with a potential of 1.2 V, and the conversion rate of CH4 is 11.61%. These results further prove that a well-constructed metal-oxide interface significantly improves the catalytic activity and facilitates the reaction.
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