Modification effect of Cu upon Pt In Pt?Cu?Al2O3 catalysts |
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Authors: | Yang Xi-yao and Yao Li-jun |
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Institution: | (1) Department of Chemistry, Peking University, Beijing, China |
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Abstract: | In Pt–Cu–Al2O3 catalysts Cu might display either Electronic Ligand Effect or Ensemble Effect, depending on the preparation method of catalysts. For catalysts with Pt added before Cu, the latter exhibits an Electronic Ligand Effect. However, for catalysts with Cu added before Pt or with co-added Pt and Cu, Cu mainly demonstrates an Ensemble Effect.
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