XANES determination of chromium oxidation states in glasses: comparison with optical absorption spectroscopy

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dc.creatorVillain, Olivier
dc.creatorCalas, Georges
dc.creatorGaloisy, Laurence
dc.creatorCormier, Laurent
dc.creatorHazemann, Jean-Louis
dc.date2007-05-23
dc.date.accessioned2026-07-07T08:02:58Z
dc.date.available2026-07-07T08:02:58Z
dc.descriptionThe oxidation state of chromium in glasses melted in an air atmosphere with and without refining agents was investigated by Cr K-edge X-ray Absorption Near-Edge Structure (XANES) and optical absorption spectroscopy. A good agreement in the relative proportion of Cr(III) and Cr(VI) is obtained between both methods. We show that the chemical dependence of the absorption coefficient of Cr(III) is less important in XANES than in optical absorption spectroscopy. The comparison of glasses melted under different conditions provides an indirect assessment of the molar extinction coefficient of Cr(VI) in glasses.
dc.identifierhttps://arxiv.org/abs/0705.3355
dc.identifierhttp://arxiv.org/abs/0705.3355
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/129408
dc.subjectMaterials Science
dc.titleXANES determination of chromium oxidation states in glasses: comparison with optical absorption spectroscopy
dc.typetext

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