Characterization of titanium and zirconium valerate sol-gel films

Kathryn G. Severin, Jeffrey S. Ledford, Beatrice A. Torgerson, Kris A. Berglund

    Research output: Research - peer-reviewArticle

    • 29 Citations

    Abstract

    FTIR and XPS have been used to characterize titanium and zirconium valerate thin films prepared using sol-gel techniques. Films were prepared by hydrolysis of titanium(IV) isopropoxide or zirconium(IV) n-propoxide in excess valeric acid at room temperature. Film solution chemistry, from precursors to cast films, was followed with FTIR. The structure and chemical composition of films spin cast from fresh and day-old solutions were determined. Results of these studies suggest that all films consist of a metal-oxygen polymer backbone coordinated with bidentate valerate ligands. No evidence for the presence of alkoxide ligands has been found. A small amount of water is present in all cast films. While solution aging experiments indicate that the zirconium film structure does not change with solution reaction time, carboxylate ligand concentrations are higher in titanium films made from aged solutions. Titanium films made from aged solutions contain slightly less than 1.5 valerate ligands/titanium atom. Zirconium films are more highly carboxylated with almost two valerate groups per metal center.

    LanguageEnglish (US)
    Pages890-898
    Number of pages9
    JournalChemistry of Materials
    Volume6
    Issue number7
    StatePublished - 1994

    Profile

    Valerates
    Titanium
    Sol-gels
    Zirconium
    Ligands
    Metals
    Hydrolysis
    Polymers
    X ray photoelectron spectroscopy
    Aging of materials
    Oxygen
    Thin films
    Atoms
    Water
    Chemical analysis
    Experiments
    Temperature
    n-pentanoic acid
    titanium isopropoxide
    Acids

    ASJC Scopus subject areas

    • Materials Chemistry
    • Materials Science(all)

    Cite this

    Severin, K. G., Ledford, J. S., Torgerson, B. A., & Berglund, K. A. (1994). Characterization of titanium and zirconium valerate sol-gel films. Chemistry of Materials, 6(7), 890-898.

    Characterization of titanium and zirconium valerate sol-gel films. / Severin, Kathryn G.; Ledford, Jeffrey S.; Torgerson, Beatrice A.; Berglund, Kris A.

    In: Chemistry of Materials, Vol. 6, No. 7, 1994, p. 890-898.

    Research output: Research - peer-reviewArticle

    Severin, KG, Ledford, JS, Torgerson, BA & Berglund, KA 1994, 'Characterization of titanium and zirconium valerate sol-gel films' Chemistry of Materials, vol 6, no. 7, pp. 890-898.
    Severin, Kathryn G. ; Ledford, Jeffrey S. ; Torgerson, Beatrice A. ; Berglund, Kris A./ Characterization of titanium and zirconium valerate sol-gel films. In: Chemistry of Materials. 1994 ; Vol. 6, No. 7. pp. 890-898
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