Abstract:
:Despite tremendous importance in catalysis, the design of oxide-metal interface has been hampered by the limited understanding of the nature of interfacial sites and the oxide-metal interaction (OMI). Through construction of well-defined Cu2O/Pt, Cu2O/Ag and Cu2O/Au interfaces, we find that Cu2O nanostructures (NSs) on Pt exhibit much lower thermal stability than on Ag and Au, although they show the same structure. The activities of these interfaces are compared for CO oxidation and follow the order of Cu2O/Pt > Cu2O/Au > Cu2O/Ag. OMI is found to determine the activity and stability of supported Cu2O NSs, which could be described by the formation energy of interfacial oxygen vacancy. Further, electronic interaction between Cu+ and metal substrates is found center to OMI, where the d band center could be used as a key descriptor. Our study provides insight for OMI and for the development of Cu-based catalysts for low temperature oxidation reactions.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Huang W,Liu Q,Zhou Z,Li Y,Ling Y,Wang Y,Tu Y,Wang B,Zhou X,Deng D,Yang B,Yang Y,Liu Z,Bao X,Yang Fdoi
10.1038/s41467-020-15965-8subject
Has Abstractpub_date
2020-05-08 00:00:00pages
2312issue
1issn
2041-1723pii
10.1038/s41467-020-15965-8journal_volume
11pub_type
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