Surfactant-Promoted Prussian Blue Analogues Fabricated Electrodes for Electrocatalytic Water Oxidation
Keywords:Prussian Blue Analogues, Coordination Polymers, Cationic Surfactants, Cetyltrimethylammonium bromide, Water Oxidation Studies
Prussian blue analogues (PBAs) have unique structural and chemical behaviour and therefore have applications
in various fields of catalysis as energy conversion materials for storage devices and molecular sensing. Herein we
focused on the in-situ synthesis of three PBAs comprising cobalt hexacyanoferrate (CoHCF), nickel hexacyanoferrate
(NiHCF), and cobalt-nickel hexacyanoferrate (CoNiHCF) through cation i.e. cetyltrimethylammonium bromide
(CTAB) assisted drop cast method. The electrocatalysts were characterized through a multitude of spectroscopic
techniques and were tested for water oxidation study. It was found that among the three electrocatalysts, CoNiHCF
showed comparatively better catalytic performance with an overpotential value of 570 mV (at 1 mA cm-2).
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