Silver nanoparticles decorated phthalocyanine doped polyaniline for the simultaneous electrochemical detection of hydroquinoneand catechol

Sudhakara, Sarvajith Malali and Devendrachari, Mruthyunjayachari C and Kotresh, Harish M N and Khan, Fasiulla (2021) Silver nanoparticles decorated phthalocyanine doped polyaniline for the simultaneous electrochemical detection of hydroquinoneand catechol. Journal of Electroanalytical Chemistry, 884. ISSN 1572-6657

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Abstract

In this proposed study, the new electrocatalyst was synthesized by incorporating the supramolecular electrocat�alyst tetra amino cobalt phthalocyanine (TACoPc) into the conducting polyaniline (PANI) and which was sub�sequently used to decorate silver nanoparticles (AgNPs) using Ag+ solution on the surface of TACoPc/PANI composite to form a supramolecular hybrid system. The decoration of AgNPs on the surface of TACoPc/ PANI was carried out in an aqueous media at room temperature and which was confirmed by various spectro�scopic techniques. The synthesized catalyst AgNPs decorated TACoPc doped PANI (TACoPc/PANI/AgNPs) modified the glassy carbon electrode (GCE) used to construct the electrochemical sensor for simultaneous detection of hydroquinone (HQ) and catechol (CC). The modified electrode showed the two distinct peaks for HQ and CC in CV analysis with a considerable potential difference of 0.080 V vs SHE. The presence of cen�tral cobalt metal in TACoPc macromolecular electrocatalyst mediates the oxidation of HQ and CC, which was successively enhanced by the incorporation of conducting PANI and AgNPs. The sensor exhibited excellent electrocatalytic activity with good stability, selectivity, reproducibility, and a very low limit of detection in the electrochemical sensing of HQ and CC in a 0.1 M H2SO4 electrolyte solution

Item Type: Article
Uncontrolled Keywords: Electrocatalyst Polyaniline Silver nanoparticle Hydroquinone Catechol Simultaneous detection Phthalocyanines
Subjects: Engineering > MIT Manipal > Chemistry
Depositing User: MIT Library
Date Deposited: 23 Apr 2021 05:52
Last Modified: 23 Apr 2021 05:52
URI: http://eprints.manipal.edu/id/eprint/156641

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