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Au-ZSM-5 catalyses the selective oxidation of CH4 to CH3OH and CH3COOH using O2

 Date:2022/1/7 13:30:37 Views:Times

The oxidation of methane, the main component of natural gas, to selectively form oxygenated chemical feedstocks using molecular oxygen has been a long-standing grand challenge in catalysis. Here, using gold nanoparticles supported on the zeolite ZSM-5, we introduce a method to oxidize methane to methanol and acetic acid in water at temperatures between 120 and 240 °C using molecular oxygen in the absence of any added coreductant. Electron microscopy reveals that the catalyst does not contain gold atoms or clusters, but rather gold nanoparticles are the active component, while a mechanism involving surface adsorbed species is proposed in which methanol and acetic acid are formed via parallel pathways.



中国科学院精密测量科学与技术创新研究院 (中国科学院武汉物理与数学研究所) 邓风课题组
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