Abstract
Keggin-type polyoxometalate (POM) containing anilinium cation, (ANIH)5[PCu(H2O)W11O39](ANI).8H2O, has been synthesised and analysed using FT-IR and UV–vis spectroscopy. A thin film of (ANIH)5[PCu(H2O)W11O39](ANI).8H2O, abbreviated as PANI/[PCu(H2O)W11O39], has been formed onto glassy carbon surfaces by the electro polymerisation technique. The electrochemical behaviour of the modified electrode was investigated using various electrochemical methods, such as cyclic voltammetry and electrochemical impedance spectroscopy. Amperometric detection of iodate studies revealed that the PANI/[PCu(H2O)W11O39] modified electrode has two linear ranges of 2–20 μM and 40–2500 μM, as well as a limit of detection (LOD) and sensitivity of 0.8 μM (S/N = 3) and 0.347 μAcm−2/μM for the lower range and 1.7 μM (S/N = 3) and 0.014 μAcm−2/μM for the higher range respectively. In the presence of typical interfering analytes such as KH2PO4, KCl, NaClO3, NaNO3, Na2SO4, and NaClO4, the suggested electrochemical sensor exhibits significant catalytic activity. The modified electrode showed excellent stability, rapid amperometric response (within 3 s), and the possibility of rapid electrode preparation. Chemico-physical characterisation of the target systems was performed scanning electron microscopy, Fourier transform infrared spectroscopy and UV–visible spectroscopy.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
