In:
Surface Science Spectra, American Vacuum Society, Vol. 28, No. 2 ( 2021-12-01)
Abstract:
In this work, x-ray photoelectron spectroscopy was employed to characterize the surface composition and elemental chemical states of supported Co3O4-SnO2 and Co3O4-Fe2O3 nanocomposites. The present materials were prepared on Si(100) substrates by the chemical vapor deposition of cobalt oxide under O2 + H2O atmospheres, followed by the tailored introduction of SnO2 or Fe2O3 by means of radio frequency-sputtering. Material structural and morphological characterization revealed the formation of nanocomposite heterostructures involving a conformal Co3O4 coverage by SnO2 or Fe2O3 overlayers. Survey spectra as well as detailed scans of C 1s, O 1s, Co 2p, Sn 3d, and Fe 2p regions are presented and critically discussed. The results provide evidence for the formation of pure and oxygen-deficient nanocomposites, and the occurrence of an electronic interplay between the single oxide constituents.
Type of Medium:
Online Resource
ISSN:
1055-5269
,
1520-8575
DOI:
10.1116/6.0001146.N0169401
DOI:
10.1116/6.0001146.N0169501
DOI:
10.1116/6.0001146.N0169404
DOI:
10.1116/6.0001146.N0169504
DOI:
10.1116/6.0001146.N0169405
DOI:
10.1116/6.0001146.N0169505
DOI:
10.1116/6.0001146.N0169504
DOI:
10.1116/6.0001146.N0169404
DOI:
10.1116/6.0001146.N0169504
DOI:
10.1116/6.0001146.N0169401
DOI:
10.1116/6.0001146.N0169402
DOI:
10.1116/6.0001146.N0169403
DOI:
10.1116/6.0001146.N0169404
DOI:
10.1116/6.0001146.N0169405
DOI:
10.1116/6.0001146.N0169501
DOI:
10.1116/6.0001146.N0169502
DOI:
10.1116/6.0001146.N0169503
DOI:
10.1116/6.0001146.N0169504
DOI:
10.1116/6.0001146.N0169505
DOI:
10.1116/6.0001146.sm
Language:
English
Publisher:
American Vacuum Society
Publication Date:
2021
detail.hit.zdb_id:
2008474-2
SSG:
11
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