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Current Analytical Chemistry

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ISSN (Print): 1573-4110
ISSN (Online): 1875-6727

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Research Article

Study of Cobalt Doped GdAlO3 for Electrochemical Application

Author(s): Jisha P. Kunhan, Prashantha S. Chandrappa, C.R. Ravikumar, Nagabhushana Hanumantharayappa, Ramachandra Naik*, Ramyakrishna Pothu, Rajender Boddula* and Ahmed Al Otaibi

Volume 17, Issue 5, 2021

Published on: 10 April, 2020

Page: [662 - 667] Pages: 6

DOI: 10.2174/1573411016666200410090148

Price: $65

Abstract

Background: Nano perovskite-type structures as denoted by ABO3 (A= RE) have been popular targets of fundamental investigations since they exhibit a wide variety of physical properties depending upon the chemical composition, defects and small changes in atomic arrangements.

Methods: GdAlO3: Co2+ (1, 3 &9 mol %) was synthesized using the solution combustion method by using stoichiometric quantities of gadolinium nitrate [Gd (NO3)3], aluminium nitrate (Al (NO3)2, and cobalt nitrate Co(NO3)2.

Results: The morphology, structure and particle size of the prepared GdAlO3: Co2+ sample were characterized by transmission electron microscope (TEM) image. The Fourier transform infrared (FT-IR) spectral analysis confirmed that the as-prepared powder was in pure state. Electrochemical impedance measurements (EIS) of different GdAlO3: Co2+ samples were measured vs. Ag/AgCl in the frequency range of 1 Hz to 1 MHz with AC amplitude of 5 mV at steady-state which clearly indicated that Co2+ dopant is a successful doping material for the fabrication of supercapacitors.

Conclusion: Electrochemical impedance measurements (EIS) of different GdAlO3: Co2+ samples were measured vs. Ag/AgCl in the frequency range of 1 Hz to 1 MHz with AC amplitude of 5 mV at steady-state which clearly indicated that Co2+ dopant is a successful doping material for the fabrication of supercapacitors. From a future perspective, we believe that GdAlO3: Co2+ composite material could be a promising electrode material for the fabrication of various sensors, supercapacitors and solar cells.

Keywords: Cyclic Electrochemical Impedance Spectroscopy (EIS), FT-IR, TEM, Nano perovskite-type structure, chemical composition, supercapacitors.

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