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Electroreduction of Chloramines Through Novel Electrode Materials
Author(s) -
Terzi F.,
Zanfrognini B.,
Zanardi C.,
Pigani L.,
Seeber R.
Publication year - 2012
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201100554
Subject(s) - pedot:pss , amperometry , electrode , materials science , detection limit , chloramine , repeatability , conductive polymer , polymer , analytical chemistry (journal) , chemical engineering , electrochemistry , chemistry , chromatography , composite material , metallurgy , chlorine , engineering
Novel electrode materials have been developed and applied to the determination of chloramines by amperometric methods. In particular, a thin layer of a conducting polymer, namely poly(3,4‐ethylenedioxythiophene) (PEDOT) has been tested for the first time in the presence of chloramines. Significant improvements in the performance of the modified electrodes are obtained by using composite materials based on differently encapsulated Au nanoparticles and PEDOT. The resulting electrode system exhibits repeatability and reproducibility of the voltammetric responses, as well as low limit of detection and high sensitivity in the determination of monochloramine, as testified by the cyclic voltammetric curves and the calibration plots obtained by a rotating disk electrode.