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Resolving ruthenium: XPS studies of common ruthenium materials
Author(s) -
Morgan David J.
Publication year - 2015
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.5852
Subject(s) - ruthenium , x ray photoelectron spectroscopy , binding energy , anhydrous , metal , chemistry , monochromatic color , materials science , catalysis , nuclear magnetic resonance , atomic physics , physics , organic chemistry , optics
X‐ray photoelectron spectroscopy (XPS) utilising monochromatic Al K α radiation has been employed to study metallic ruthenium and the catalytically and technologically important ruthenium compounds RuO 2 , RuCl 3 , Ru(NO)(NO 3 ) 3 and Ru(AcAc) 3 . The results improve on the accuracy of already published Ru(3d) binding energies, expand known Ru(3p) binding energies and also report spin‐orbit splitting for the core levels. For RuO 2 , the difference between anhydrous and hydrated samples is explored, and the effect on curve fitting such spectra is discussed. Analysis of RuCl 3 has allowed, for the first time, the positive identification of Ru(OH) 3 by XPS. Copyright © 2015 John Wiley & Sons, Ltd.