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Vibrational Properties of Cr II Centers on Reduced Phillips Catalysts Highlighted by Resonant Raman Spectroscopy
Author(s) -
Damin Alessandro,
Bonino Francesca,
Bordiga Silvia,
Groppo Elena,
Lamberti Carlo,
Zecchina Adriano
Publication year - 2006
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200500408
Subject(s) - raman spectroscopy , catalysis , chromate conversion coating , spectroscopy , resonance raman spectroscopy , resonance (particle physics) , chemistry , molecular vibration , analytical chemistry (journal) , atomic physics , optics , physics , chromium , organic chemistry , quantum mechanics
Surface chromate species on Phillips catalysts are probed directly using resonant Raman spectroscopy (see figure). Under pre‐resonance conditions, for the first time, the vibrational features of the Cr II ‐active centers and their evolution upon interaction with N 2 and CO are observed.