Nanostructured titania films are formed by directly oxidizing titanium with hydrogen peroxide. A low-temperature anneal transforms the films from an amorphous phase to anatase crystal. Surface-area measurements of the annealed nanostructured titania using the Brunauer, Emmett, and Teller method reveal a specific surface area of 535 m2 g, the highest ever reported for a nanostructured titania film. The low-temperature anneal is compatible with heat-treated polyimide or polyester substrates for roll-to-roll processing of flexible electronics or solar cells.

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Journal Electrochemical and Solid-State Letters
Froimovitch, A., McGarry, S, Smy, T, & Fraser, J. (2007). Ultrahigh-surface-area anatase thin films by direct oxidation of Ti film with hydrogen peroxide. Electrochemical and Solid-State Letters, 10(3). doi:10.1149/1.2422776