Preparation of TiO₂ film on Ag and Al electrode for electrochemical bio-sensing application
by Nibedita Patro; Priyabrata Pattanaik; Sushanta Kumar Kamilla
International Journal of Nano and Biomaterials (IJNBM), Vol. 7, No. 4, 2018

Abstract: In this present, work, titanium dioxide (TiO₂) deposited on Ag and Al electrodes were fabricated by sol-gel chemical wet and dry (CWD) method to detect urea. The formation of the polycrystalline TiO₂ deposited on Ag and Al substrates were confirmed by X-ray diffraction (XRD) analysis. The XRD analyses of both the samples clearly indicated that some percentage of Ag and Al diffuses into the TiO₂ matrix at its interface region. The nature of I-V characteristics showed by the TiO₂ on Ag and Al wire electrodes are found to be Ohmic and is perfect to be used for electrochemical sensor or bio-sensor at very low potential value. The performance and response to various concentrations of urea solution and pH level were experimentally studied by using TiO₂ coated on Ag and Al as working electrodes with respect to Ag as reference electrode.

Online publication date: Wed, 26-Sep-2018

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