title: Low-Cost and Facile Synthesis of the Vanadium Oxides V2O3, VO2, and V2O5and Their Magnetic, Thermochromic and Electrochromic Properties.
abstract: In this study, vanadium sesquioxide (V2O3), dioxide (VO2), and pentoxide (V2O5) were all synthesized from a single polyol route through the precipitation of an intermediate precursor: vanadium ethylene glycolate (VEG). Various annealing treatments of the VEG precursor, under controlled atmosphere and temperature, led to the successful synthesis of the three pure oxides, with sub-micrometer crystallite size. To the best of our knowledge, the synthesis of the three oxides V2O5, VO2, and V2O3from a single polyol batch has never been reported in the literature. In a second part of the study, the potentialities brought about by the successful preparation of sub-micrometer V2O5, VO2, and V2O3are illustrated by the characterization of the electrochromic properties of V2O5films, a discussion about the metal to insulator transition of VO2on the basis of in situ measurements versus temperature of its electrical and optical properties, and the characterization of the magnetic transition of V2O3powder from SQUID measurements. For the latter compound, the influence of the crystallite size on the magnetic properties is discussed.
authors.affiliation: CNRS, ICMCB , UPR 9048, 87 avenue du Dr Albert Schweitzer, F-33608 Pessac, France.|Univ. Bordeaux, ICMCB , UPR 9048, F-33600 Pessac, France.
authors.forename: Issam
authors.initials: I
authors.lastname: Mjejri
authors.affiliation: CNRS, ICMCB , UPR 9048, 87 avenue du Dr Albert Schweitzer, F-33608 Pessac, France.|Univ. Bordeaux, ICMCB , UPR 9048, F-33600 Pessac, France.
authors.forename: Aline
authors.identifier: http://orcid.org/0000-0002-1340-734X
authors.initials: A
authors.lastname: Rougier
authors.affiliation: CNRS, ICMCB , UPR 9048, 87 avenue du Dr Albert Schweitzer, F-33608 Pessac, France.|Univ. Bordeaux, ICMCB , UPR 9048, F-33600 Pessac, France.
authors.forename: Manuel
authors.initials: M
authors.lastname: Gaudon