@inproceedings{9929a8033b8446768254d41b93f1959e,
title = "Voltammetric and impedance studies of phenols and its derivatives at carbon nanotubes/Prussian blue films platinum modified electrode",
abstract = "The electrochemical oxidation of phenol (Ph), 4-chlorophenol (4-ClPh) and 4-nitrophenol (4-NPh) at a platinum electrode modified with and without multi-walled carbon nanotubes/Prussian blue nanocomposite was investigated by cyclic voltammetry (CV) and impedance measurements. The modified electrodes were characterized using transmission electron microscopy (TEM), electron X-ray dispersive spectroscopy (XRD), cyclic voltammetry (CVs) and electrochemical impedance spectroscopy (EIS). Pt-MWCNT-PB electrode gave the highest electrooxidation current compared to the other electrodes studied. The oxidation of the phenol was characterized by some level of adsorption. The degree of adsorption was depicted by theTafel values of 4292.4, 663.2 and 203.8 mVdec -1 for Ph, 4-ClPh and 4-NPh respectively. The limits of detection were in the micro molar range and the Gibbs free energy change (ΔG°) due to adsorption was estimated as -33.8, -35.8 and -36.0 kJmol-1 for Ph, 4-ClPh and 4-NPh.",
keywords = "Adsorption, Impedance measurement, Phenols, Platinum electrode, Prussian blue nanoparticles",
author = "Adekunle, {A. S.} and Arotiba, {O. A.} and Agboola, {B. O.} and Maxakato, {N. W.} and Mamba, {B. B.} and Ebenso, {E. E.}",
year = "2014",
language = "English",
isbn = "9781482258301",
series = "Technical Proceedings of the 2014 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2014",
publisher = "Nano Science and Technology Institute",
pages = "280--283",
booktitle = "Technical Proceedings of the 2014 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2014",
note = "Nanotechnology 2014: Electronics, Manufacturing, Environment, Energy and Water - 2014 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2014 ; Conference date: 15-06-2014 Through 18-06-2014",
}