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A Study of [Cr-O6]-based rutile analogues by means of EELS

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Abstract

We present in here the study by means of electron energy loss spectroscopy (EELS) of several rutile based oxides, having in common the presence of octahedrally oxygen coordinated chromium, [Cr-O6], in three different formal oxidation states: Cr4+ in CrO2, a regular rutile; Cr3+ in CrOOH, a H bonded orthorrombic distorted rutile and in CrTaO4, a metal disordered rutile and Cr2+ in CrTa2O6 an ordered trirutile structure. A linear relationship is observed between the formal oxidation state of chromium in all these rutile oxides and the separation between the Cr-L2,3 and O-K energy loss peaks.

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Authors and Affiliations

  1. Departamento Química Inorgánica, Facultad de Químicas, 28040, UCM Madrid, Spain

    Angel M. Arevalo-Lopez, Elizabeth Castillo-Martinez & Miguel Á. Alario-Franco

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  1. Angel M. Arevalo-Lopez
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  2. Elizabeth Castillo-Martinez
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  3. Miguel Á. Alario-Franco
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Arevalo-Lopez, A.M., Castillo-Martinez, E. & Alario-Franco, M.Á. A Study of [Cr-O6]-based rutile analogues by means of EELS. MRS Online Proceedings Library 1148, 331 (2008). https://doi.org/10.1557/PROC-1148-PP03-31

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  • DOI: https://doi.org/10.1557/PROC-1148-PP03-31

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