Bibliographic Details
| Title: |
The antimonide oxides REZnSbO and REMnSbO (RE = Ce, Pr) – An XPS study |
| Authors: |
Gurgul, Jacek1 ncgurgul@cyf-kr.edu.pl, Rinke, Matthias T.2, Schellenberg, Inga3, Pöttgen, Rainer3 pottgen@uni-muenster.de |
| Source: |
Solid State Sciences. Mar2013, Vol. 17, p122-127. 6p. |
| Subjects: |
Antimonides, Metallic oxides, X-ray photoelectron spectroscopy, Polycrystals, Valence (Chemistry), Oxidation |
| Abstract: |
Abstract: Polycrystalline samples of the ZrCuSiAs type antimonide oxides REZnSbO and REMnSbO (RE = Ce, Pr) were prepared from RESb precursors and MnO, respectively ZnO via a ceramic route. X-ray photoelectron spectroscopy (XPS) studies are used to investigate the charge assignments. For comparison the CeO2 and Pr6O11 reference standards were also investigated. Detailed component analysis of Sb 3d, O 1s, C 1s, Mn 2p, Zn 2p, Pr 3d and Ce 3d core-level spectra determined the types of valence states and their proportions on the samples'' surfaces. The results show that praseodymium is in a +3 oxidation state, whereas cerium exists in both +3 and +4 states. The formations of three manganese states in REMnSbO and one dominating Zn(II) state in REZnSbO have also been noticed. [Copyright &y& Elsevier] |
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| Database: |
Engineering Source |
