Archivio Istituzionale della RicercaLithiated vanadium oxides with polyelectrochromic behaviour are reported here for the first time. Electrochrome was obtained by means of a simple and solvent-free solid state reaction. Clear XPS evidence indicates that the electro-generation of the red color is due to the dismutation of surface-adsorbed O2− species with subsequent formation of red colored V5+–O22− complexes. The reaction is switched electrochemically by oxidation of the surface V4+ centers
Three-Colors Electrochromic Lithiated Vanadium Oxides: The Role of Surface Superoxide in the Electro-generation of Red State / Zanarini, S., DI LUPO, F., Bedini, A., VANKOVA KRASIMIROVA, S., Garino, N., Francia, C., Bodoardo, S.. - In: JOURNAL OF MATERIALS CHEMISTRY. C. - ISSN 2050-7526. - 2:(2014), pp. 8854-8857. [10.1039/C4TC01123F]
Three-Colors Electrochromic Lithiated Vanadium Oxides: The Role of Surface Superoxide in the Electro-generation of Red State
ZANARINI, SIMONE;DI LUPO, FRANCESCA;VANKOVA KRASIMIROVA, SVETOSLAVA;GARINO, NADIA;FRANCIA, Carlotta;BODOARDO, SILVIA
2014
Abstract
Lithiated vanadium oxides with polyelectrochromic behaviour are reported here for the first time. Electrochrome was obtained by means of a simple and solvent-free solid state reaction. Clear XPS evidence indicates that the electro-generation of the red color is due to the dismutation of surface-adsorbed O2− species with subsequent formation of red colored V5+–O22− complexes. The reaction is switched electrochemically by oxidation of the surface V4+ centers
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https://hdl.handle.net/11583/2562144
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