Infrared and X-ray absorption spectra of Cu2O and CuO nanoceramics
| Autor(en): | Mostovshchikova, E.V. Gizhevskii, B.A. Loshkareva, N.N. Galakhov, V.R. Naumov, S.V. Ponosov, Y.S. Ovechkin, N.A. Kostromitina, N.V. Buling, A. Neumann, M. |
Stichwörter: | Absorption spectra; Ceramic materials; Coarse grains; Copper oxides; Cupper oxides; Cupper oxides, X ray absorption; Light absorption; Magnetic materials; Magnetism; Nano ceramics; Nano-Cu; Nano-structured; Nanomaterials; Nanostructured materials; Optical spectra; Oxide powder; Torsional stress; X ray absorption, High pressure torsions; X-ray absorption spectra; X-ray absorption spectrum | Erscheinungsdatum: | 2012 | Herausgeber: | Trans Tech Publications Ltd | Journal: | Solid State Phenomena | Volumen: | 190 | Startseite: | 683 | Seitenende: | 686 | Zusammenfassung: | We present the results of the study of middle infrared absorption (MIR) and X-ray absorption (XAS) spectra of nanostructured CuO and Cu2O ceramics prepared by the high pressure torsion method from coarse-grain oxide powders. We have found that the MIR bands at ∼140 meV in CuO and Cu 2O nanoceramics are associated with the presence of Cu+ and Cu2+ ions, respectively. X-ray absorption spectra indicate an appearance of extra Cu2+ and Cu+ ions in nano-Cu 2O and nano-CuO ceramics, respectively. © (2012) Trans Tech Publications. |
Beschreibung: | Conference of 5th Moscow International Symposium on Magnetism, MISM 2011 ; Conference Date: 21 August 2011 Through 25 August 2011; Conference Code:91339 |
ISBN: | 9783037854365 | ISSN: | 10120394 | DOI: | 10.4028/www.scientific.net/SSP.190.683 | Externe URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84864265571&doi=10.4028%2fwww.scientific.net%2fSSP.190.683&partnerID=40&md5=41725761c4f3c1f8265ff20eba4c2e8f |
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