Abstract:
A polymer of tetra(4)-(4,6-diaminopyrimidin-2-
ylthio) phthalocyaninatocobalt(II) (CoPyPc) has been deposited
over a multiwalled carbon nanotube (MWCNT) platform
and its electrocatalytic properties investigated side by side
with polymerized cobalt tetraamino phthalocyanine
(CoTAPc). X-ray photoelectron spectroscopy, scanning electron
microscopy and cyclic voltammetry studies were used for
characterization of the prepared polymers of cobalt phthalocyanine
derivatives and their nanocomposites. L-Cysteine was
used as a test analyte for the electrocatalytic activity of the
nanocomposites of polymerized cobalt phthalocyanines and
multiwalled carbon nanotubes. The electrocatalytic activity
of both polymerized cobalt phthalocyanines was found to be
superior when polymerization was done on top of MWCNTs
compared to bare glassy carbon electrode. A higher sensitivity
for L-cysteine detection was obtained on CoTAPc compared
to CoPyPc.
