Synthesis, electrochemistry and electrocatalytic activity of cobalt phthalocyanine complexes
By Acar, Elif Turker; Tabakoglu, Tuba Akk?zlar; Atilla, Devrim; Yuksel, Fatma; Atun, Gulten
Published in Polyhedron
2018
Abstract
The synthesis, characterization, electrochemistry and electrocatalytic activity of the mono (pyridine-4-oxy)-tri (tert-butyl) phthalocyaninato Co(II) (Pc1) and mono (pyridine-4-oxy)-hexa (hexyl) phthalocyaninato Co(II) (Pc2) are reported here. One reversible and one irreversible oxidation couples and two quasi-reversible reduction couples are observed for two complexes on the cyclic voltammograms. Both cobalt phthalocyanine derivatives (CoPcs) and multiwall carbon nanotube (MWCNT) composite (CoPcs/MWCNT) electrodes are coated on glassy carbon electrodes and used as electrocatalysts for oxygen reduction reaction (ORR). The morphology of composite surfaces is characterized using Scanning Electron Microscope (SEM). The results obtained using rotating disk electrode (RDE) reveal that the high catalytic activity is observed with 4e? and mixed 2e?
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