Abstract
AbstractX‐ray photoelectron spectroscopy is used to analyse systematically a group of La1−xSrx‐based mixed‐metal perovskite‐type oxides of interest in the development of oxygen separation membranes. Angle‐ and temperature‐resolved studies reveal compositional variations that correlate with the segregation of various elements during annealing. The complex O 1s, Sr 3d5/2 and La 3d5/2 spectra could be curve‐fitted systematically with two La 3d5/2, three Sr 3d5/2 and five O 1s contributions, respectively, using fixed binding energies and full widths at half‐maximum. The trends are discussed and assignments are made on the basis of peak intensity and composition variations noted during the angle‐ and temperature‐resolved studies, literature data and nearest‐neighbor electronegativities. In all cases, elements present at the outermost surface revealed higher binding energies than their bulk‐bound counterparts. Copyright © 2002 John Wiley & Sons, Ltd.
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Dates
Type | When |
---|---|
Created | 23 years ago (Aug. 25, 2002, 7:45 p.m.) |
Deposited | 1 year, 10 months ago (Oct. 17, 2023, 1:40 a.m.) |
Indexed | 1 week, 2 days ago (Aug. 21, 2025, 12:48 p.m.) |
Issued | 23 years, 4 months ago (April 23, 2002) |
Published | 23 years, 4 months ago (April 23, 2002) |
Published Online | 23 years, 4 months ago (April 23, 2002) |
Published Print | 23 years, 3 months ago (May 1, 2002) |
@article{van_der_Heide_2002, title={Systematic x‐ray photoelectron spectroscopic study of La1−xSrx‐based perovskite‐type oxides}, volume={33}, ISSN={1096-9918}, url={http://dx.doi.org/10.1002/sia.1227}, DOI={10.1002/sia.1227}, number={5}, journal={Surface and Interface Analysis}, publisher={Wiley}, author={van der Heide, P. A. W.}, year={2002}, month=apr, pages={414–425} }