Abstract
AbstractThe influence of UiO‐bpy skeleton for the direct methane‐to‐methanol conversion on Cu@UiO‐bpy is studied by experiment and DFT. It is found that Cu@UiO‐bpy shows high methanol yield and stability. However, if the UiO‐bpy skeleton is destroyed, the active sites of small CuxOx clusters grow into CuO nanoparticles due to the thermal movement during the reaction. As a result, the catalyst is deactivated. In other words, the encapsulation effect is a key factor for catalyst stability, which prevents the growth of CuxOx clusters. In addition, the encapsulation effect of UiO‐bpy skeleton affects the morphology and size of CuxOx clusters, of which small CuxOx clusters are beneficial for methane conversion.
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