Sol - Gel synthesis of vanadium oxide within a block copolymer matrix

Elsa A. Olivetti; Jong Hak Kim; Donald R. Sadoway; Ayse Asatekin; Anne M. Mayes

doi:10.1021/cm060119s

Sol - Gel synthesis of vanadium oxide within a block copolymer matrix

Elsa A. Olivetti, Jong Hak Kim, Donald R. Sadoway, Ayse Asatekin, Anne M. Mayes

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

51 Citations (Scopus)

Abstract

Films consisting of a vanadium pentoxide (i.e., V ₂O ₅) phase formed within a rubbery block copolymer were developed for their potential use as nanocomposite cathodes in lithium rechargeable batteries. Nanocomposite films were prepared by sol - gel synthesis from vanadyl triisopropoxide precursor in poly(oligooxyethylene methacrylate)-block- poly(butyl methacrylate), POEM-b-PBMA. The in situ growth of amorphous V ₂O ₅ was confirmed by wide-angle X-ray scattering (WAXS), X-ray photoelectron spectroscopy (XPS), and small-angle X-ray scattering (SAXS). Scanning transmission electron microscopy (STEM) and differential scanning calorimetry (DSC) demonstrated the selective incorporation of vanadium oxide within the ion-conducting POEM domains, while the oxide morphology was revealed by TEM to be a filamentous network. Cyclic voltammetry and impedance spectroscopy confirmed the preservation of the redox properties of the vanadium oxide and the ion-conductive properties of the polymer in hybrid films. Co-assembled nanocomposite films incorporating up to 34 wt % (13 vol %) vanadium oxide were flexible and semi-transparent.

Original language	English
Pages (from-to)	2828-2833
Number of pages	6
Journal	Chemistry of Materials
Volume	18
Issue number	12
DOIs	https://doi.org/10.1021/cm060119s
Publication status	Published - 2006 Jun 13

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)
Materials Chemistry

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title = "Sol - Gel synthesis of vanadium oxide within a block copolymer matrix",

abstract = "Films consisting of a vanadium pentoxide (i.e., V 2O 5) phase formed within a rubbery block copolymer were developed for their potential use as nanocomposite cathodes in lithium rechargeable batteries. Nanocomposite films were prepared by sol - gel synthesis from vanadyl triisopropoxide precursor in poly(oligooxyethylene methacrylate)-block- poly(butyl methacrylate), POEM-b-PBMA. The in situ growth of amorphous V 2O 5 was confirmed by wide-angle X-ray scattering (WAXS), X-ray photoelectron spectroscopy (XPS), and small-angle X-ray scattering (SAXS). Scanning transmission electron microscopy (STEM) and differential scanning calorimetry (DSC) demonstrated the selective incorporation of vanadium oxide within the ion-conducting POEM domains, while the oxide morphology was revealed by TEM to be a filamentous network. Cyclic voltammetry and impedance spectroscopy confirmed the preservation of the redox properties of the vanadium oxide and the ion-conductive properties of the polymer in hybrid films. Co-assembled nanocomposite films incorporating up to 34 wt % (13 vol %) vanadium oxide were flexible and semi-transparent.",

author = "Olivetti, {Elsa A.} and Kim, {Jong Hak} and Sadoway, {Donald R.} and Ayse Asatekin and Mayes, {Anne M.}",

year = "2006",

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doi = "10.1021/cm060119s",

language = "English",

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journal = "Chemistry of Materials",

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T1 - Sol - Gel synthesis of vanadium oxide within a block copolymer matrix

AU - Olivetti, Elsa A.

AU - Kim, Jong Hak

AU - Sadoway, Donald R.

AU - Asatekin, Ayse

AU - Mayes, Anne M.

PY - 2006/6/13

Y1 - 2006/6/13

N2 - Films consisting of a vanadium pentoxide (i.e., V 2O 5) phase formed within a rubbery block copolymer were developed for their potential use as nanocomposite cathodes in lithium rechargeable batteries. Nanocomposite films were prepared by sol - gel synthesis from vanadyl triisopropoxide precursor in poly(oligooxyethylene methacrylate)-block- poly(butyl methacrylate), POEM-b-PBMA. The in situ growth of amorphous V 2O 5 was confirmed by wide-angle X-ray scattering (WAXS), X-ray photoelectron spectroscopy (XPS), and small-angle X-ray scattering (SAXS). Scanning transmission electron microscopy (STEM) and differential scanning calorimetry (DSC) demonstrated the selective incorporation of vanadium oxide within the ion-conducting POEM domains, while the oxide morphology was revealed by TEM to be a filamentous network. Cyclic voltammetry and impedance spectroscopy confirmed the preservation of the redox properties of the vanadium oxide and the ion-conductive properties of the polymer in hybrid films. Co-assembled nanocomposite films incorporating up to 34 wt % (13 vol %) vanadium oxide were flexible and semi-transparent.

AB - Films consisting of a vanadium pentoxide (i.e., V 2O 5) phase formed within a rubbery block copolymer were developed for their potential use as nanocomposite cathodes in lithium rechargeable batteries. Nanocomposite films were prepared by sol - gel synthesis from vanadyl triisopropoxide precursor in poly(oligooxyethylene methacrylate)-block- poly(butyl methacrylate), POEM-b-PBMA. The in situ growth of amorphous V 2O 5 was confirmed by wide-angle X-ray scattering (WAXS), X-ray photoelectron spectroscopy (XPS), and small-angle X-ray scattering (SAXS). Scanning transmission electron microscopy (STEM) and differential scanning calorimetry (DSC) demonstrated the selective incorporation of vanadium oxide within the ion-conducting POEM domains, while the oxide morphology was revealed by TEM to be a filamentous network. Cyclic voltammetry and impedance spectroscopy confirmed the preservation of the redox properties of the vanadium oxide and the ion-conductive properties of the polymer in hybrid films. Co-assembled nanocomposite films incorporating up to 34 wt % (13 vol %) vanadium oxide were flexible and semi-transparent.

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JF - Chemistry of Materials

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Sol - Gel synthesis of vanadium oxide within a block copolymer matrix

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