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Clusters of Cu on ZnO surfaces are established catalyst systems produced by vapor deposition of Cu that consolidates into discrete clusters. Factors such as the geometry of the ZnO surface, the nature of the interface between Cu and ZnO, and the size and distribution of metal clusters strongly control the reactivity and stability of the catalyst. Here, we report on the development and use of charge-optimized...
Cu/ZnO heterogeneous systems are used to catalyze the CO 2 hydrogenation to methanol, but questions remain about the nature of the active site and the role of Cu–ZnO interactions in the catalyst performance. The way in which ZnO surfaces support Cu clusters and stabilize their active sites is a key factor for maintaining catalyst activity. Processes such as sintering, alloying and encapsulation...
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