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钠盐修饰的Mn/SiO₂催化剂的原位XRD研究

In Situ XRD Study on Sodium Salt-Modified Mn/SiO₂ Catalysts for the Oxidative Coupling of Methane

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【Author】 HOU Sicong, CAO Yuan, XIONG Wei, LIU Lingtao, KOU Yuan(State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China)

【机构】北京大学化学与分子工程学院分子动态与稳态结构国家重点实验室；北京大学化学与分子工程学院分子动态与稳态结构国家重点实验室北京100871；北京100871；

【摘要】采用原位X射线衍射法对高温下不同钠盐修饰的Mn/SiO2催化剂物相结构进行了研究.结果表明,反应温度下催化剂表面的钠盐处于熔融的无定形态,提高了Mn2O3活性中心在甲烷氧化偶联反应中的催化活性.更多还原

【Abstract】 Sodium salt-modified Mn/SiO₂ catalysts have been characterized by in situ X-ray diffraction. The results indicate that the low melting point sodium salts exhibit amorphous features under reaction conditions and they are good promoters for the Mn/SiO₂ catalyst for the oxidative coupling of methane.更多还原