Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/49921
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Type: Journal article
Title: Sulfur electronic environments in alpha-NiS and beta-NiS: examination of the relationship between coordination number and core electron binding energies
Author: Goh, S.
Buckley, A.
Lamb, R.
Skinner, W.
Pring, A.
Wang, H.
Fan, L.
Jang, L.
Lai, L.
Yang, Y.
Citation: Physics and Chemistry of Minerals, 2006; 33(2):98-105
Publisher: Springer-Verlag
Issue Date: 2006
ISSN: 0342-1791
1432-2021
Statement of
Responsibility: 
Siew Wei Goh, Alan N. Buckley, Robert N. Lamb, William M. Skinner, Allan Pring, Haipeng Wang, Liang-Jen Fan, Ling-Yun Jang, Lee-Jene Lai and Yaw-wen Yang
Abstract: X-ray photoelectron spectra have been obtained under the same experimental conditions for synthetic α-NiS and natural β-NiS in order to establish any difference in S electronic environment, and to test the proposition that S core electron binding energies increase measurably with coordination number when the same metal is in different sulfide structures or lattice sites. The Ni and S electronic environments in the two NiS structures have been further probed by near-edge X-ray absorption fine structure (NEXAFS) spectroscopy, and the NEXAFS spectra interpreted by reference to spectra simulated by ab initio calculations. The photoelectron and NEXAFS spectra for freshly prepared surfaces of α-NiS and β-NiS were found to be similar, with only subtle differences in electronic environment evident in the experimental and simulated NEXAFS spectra. The measured and calculated core electron binding energies did not support the previously postulated relationship between S coordination number and electron binding energies
Description: © 2006 Springer. Part of Springer Science+Business Media
RMID: 0020060308
DOI: 10.1007/s00269-006-0058-1
Appears in Collections:Earth and Environmental Sciences publications

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