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Synthesis, characterisation and electrochemical studies of Co2+ doped GdAlO3 for sensor applications

P K Jisha1, Ramachandra Naik1, S C Prashantha2, H Nagabhushana3, H P Nagaswarupa1, C R Ravikumar1

Abstract


The structural and electrochemical properties of cobalt (Co2+) doped GdAlO3 nanoparticles have been investigated. Structure analysis was carried out using X-ray diffraction (XRD) and Transmission electron microscope technique (TEM). The electrochemical properties of the GdAlO3:Co2+ (3 mol %) was measured using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) measurements using 1 M KOH electrolyte and 1 M KOH electrolyte with 2 ml of Paracetamol. The cyclic voltammetry measurements indicate that the reversibility of the electrode reaction increases while adding 2 ml of Paracetamol. Whereas, the EIS measurements reveal that a reduction in the charge transfer resistance increases capacitance of the GdAlO3:Co2+ electrode.

Keywords


Combustion; Fourier transform infrared; Diffuse Reflectance; Cyclic voltammetry; Electrochemical impedance spectroscopy

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DOI: http://dx.doi.org/10.18282/pef.v7i1.90

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