Facile electrochemical growth of spinel copper cobaltite nanosheets for non-enzymatic glucose sensing and supercapacitor applications

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Facile electrochemical growth of spinel copper cobaltite nanosheets for non-enzymatic glucose sensing and supercapacitor applications

Facile electrochemical growth of spinel copper cobaltite nanosheets for non-enzymatic glucose sensing and supercapacitor applications

Author : Dr Surjit Sahoo

Year : 2017

Publisher : Elsevier

Source Title : Microporous and Mesoporous Materials 244 (2017) 226-234

Document Type :

Abstract

Herein, we report a facile and low-cost electrodeposition approach for the synthesis of Copper Cobaltite (CuCo2O4) nanosheets on indium doped tin oxide (ITO) coated glass substrates. The crystal structure and morphology of the material are characterized by X-ray diffraction, energy dispersive X-ray analysis, Raman spectroscopy, field-emission scanning electron microscopy and transmission electron microscopy. The synthesized CuCo2O4 nanosheets are composed of numerous nanoparticles and showed enhanced electrochemical activity for the glucose sensing and supercapacitor applications. The non-enzymatic glucose sensing performance of the nanosheets exhibits sensitivity of 8.25 mAmM1 cm2, linear range of detection of 5e110 mM and response time of 15 s towards glucose molecules. Similarly, supercapacitor fabricated using the CuCo2O4 nanosheets as the active electrode shows high specific capacitance of 100 F/ g at a current density of 1 A/g with remarkable cycling stability