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Electronic structure of Lewis acid sites on high surface area aluminium fluorides: a combined XPS and ab initio investigation
2009
Physical Chemistry, Chemical Physics - PCCP
High surface area (HS) AlF 3 samples have been examined by X-ray photoelectron spectroscopy (XPS). The experimentally observed binding energy (BE) shifts were analysed by reference to core level BEs obtained from ab initio total energy calculations on a range of different, clean and hydroxylated aand b-AlF 3 surfaces. Examination of the two components visible in the Al 2p emission indicates that surface Al 3+ sites can, depending on the local geometric structure, contribute to both a high BE
doi:10.1039/b821484k
pmid:19842484
fatcat:ezutisccb5dgxj7ph24vaamwe4