Submit Manuscript  

Article Details


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   Pages 1 - 6 ( 6 )

Abstract:


BACKGROUND: Nano perovskite-type structure 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 %) synthesized using the solution combustion method by using stoichiometric quantities of gadolinium nitrate [Gd (NO3)3], aluminium nitrate (Al (NO3)2, cobalt nitrate Co(NO3)2.

RESULTS: The morphology, structure and particle size of the prepared GdAlO3:Co2+ sample characterized by transmission electron microscope (TEM) image. The Fourier transform infrared (FTIR) spectral analysis confirms that the as-prepared powder itself is in pure phase. 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 indicates that Co2+ dopant was 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 indicates that Co2+ dopant was successful doping material for the fabrication of supercapacitors. As 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:

TEM, FT-IR; cyclic electrochemical impedance spectroscopy (EIS)

Affiliation:

Department of Physics, New Horizon College of Engineering, Bangalore-560103, Research Center, Department of Science, East West Institute of Technology ,VTU, Bangaluru-560091, Research Center, Department of Science, East West Institute of Technology ,VTU, Bangaluru-560091, Prof.CNR Rao Center for Advanced materials, Tumkur University, Tumkur-572103, Department of Physics, New Horizon College of Engineering, Bangalore-560103, College of Chemistry and Chemical Engineering, Hunan University, Changsha, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, Department of Chemistry, College of Sciences, University of Hail, P.O. Box 2440, Hail 81451



Read Full-Text article