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Electrochemical synthesis and characterization of new electrodes based on poly‐hematoxylin films
Author(s) -
Samide Adriana,
Tutunaru Bogdan,
Bratulescu George,
Ionescu Catalina
Publication year - 2013
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.39218
Subject(s) - cyclic voltammetry , platinum , dielectric spectroscopy , electrochemistry , materials science , electrode , nuclear chemistry , chemistry , organic chemistry , catalysis
The poly‐hematoxylin films undoped (p‐HX) and doped with strontium (p‐HX‐Sr) were prepared on the platinum electrodes (Pt) using cyclic voltammetry. The influence of experimental parameters, such as: anodic potential and number of voltammetric cycles on the films synthesis was investigated by electrochemical impedance spectroscopy (EIS). The results showed that, the optimal conditions to obtain the poly‐hematoxylin films on platinum electrode from 10 −2 mol L −1 NaNO 3 solution, were found by recording 10 voltammetric cycles at an anodic potential of 1.5 V. Electrocatalytic activity of the poly‐hematoxylin‐platinum (p‐HX/Pt) and poly‐hematoxylin‐strontium‐platinum (p‐HX‐Sr/Pt) electrodes was tested for electrochemical degradation of benzocaine using UV‐Vis spectrophotometry. Both, the mechanisms of hematoxylin (HX) polymerization, as well as benzocaine degradation were proposed. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013