SALEK, Guillaume; BELLANGER, Brice; MJEJRI, Issam; GAUDON, Manuel; ROUGIER, Aline

doi:10.1021/acs.inorgchem.6b01662

Métadonnées

Afficher la notice complète

Licence d’utilisation du document

SALEK, Guillaume
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

BELLANGER, Brice
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

MJEJRI, Issam
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

Langue

Article de revue

Ce document a été publié dans

Inorganic Chemistry. 2016, vol. 55, n° 19, p. 9838 - 9847

American Chemical Society

Résumé en anglais

Herein, the successful synthesis of Ti-doped vanadium pentoxide from a polyol process is reported. A high Ti concentration (up to 8.5 mol % of the total metallic content) can be inserted in vanadium oxide thanks to the synthesis route leading to nanometric crystallites. X-ray diffraction patterns were refined showing the insertion of the titanium ions inside the free pentacoordinated sites in opposition to the vanadium square pyramidal sites. This crystal organization was shown in good agreement with the ab initio positioning performed from valence calculation. The nanoparticles, NPs, of Ti-doped V2O5 compounds were characterized as electrochromic materials. Films elaborated from a dip-coating process from oxide particle suspensions exhibited three distinct colorations during the redox cycling in lithium-based electrolyte. These colors were associated with three distinct oxidation states for the vanadium ions: +III (blue), +IV (green), and +V (orange). The morphology of the films was shown to drastically impact the electrochromic performances in terms of electrochemical capacity and stability.< Réduire

Mots clés en anglais

Pseudobrookite

Phase Diagram

X-Ray Diffraction

Pigment

Métadonnées

Licence d’utilisation du document

Polyol synthesis of Ti-V2O5 nanoparticles and their use as electrochromic films

Langue

Ce document a été publié dans

Résumé en anglais

Mots clés en anglais

DOI

Origine

Unités de recherche