Vol. 30 No. 2 (2020)
Papers

Facile Synthesis of CuO/ITO Film Via the Chronoamperometric Electrodeposition for Nonenzymatic Glucose Sensing

Duong Thi Thuy Tran
Faculty of Basic Science - Thai Nguyen University of Agriculture and Forestry, Vietnam and Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam
Dung Quoc Nguyen
Department of Chemistry, Thai Nguyen University of Education
Chuyen Hong Pham
Department of Chemistry, Thai Nguyen University of Education
Lam Dai Tran
Institute for Tropical Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam
Dai Tien Nguyen
Institute of Theoretical and Applied Research, Duy Tan University, Hanoi, 100000, Vietnam

Published 26-05-2020

Keywords

  • copper (II) oxide,
  • glucose sensing,
  • chronoamperometry,
  • cyclic voltammetry,
  • human serum

How to Cite

Tran, D. T. T., Nguyen, D. Q., Pham, C. H., Tran, L. D., & Nguyen, D. T. (2020). Facile Synthesis of CuO/ITO Film Via the Chronoamperometric Electrodeposition for Nonenzymatic Glucose Sensing. Communications in Physics, 30(2), 161. https://doi.org/10.15625/0868-3166/30/2/14801

Abstract

We report on the synthesis of copper (II) oxide (CuO)/indium tin oxide (ITO) electrode via the electrochemical deposition method using a CuSO4 solution and then thermal oxidation in air at temperature of 400 oC for 2 h. The crystalline structure and morphology of CuO were characterized by scanning electron microscope (SEM), energy-dispersive X-ray spectroscopy (EDS), and X-ray diffraction (XRD). The electrochemical properties of the CuO/ITO electrode to glucose in the alkaline medium of 0.1 M NaOH solution were investigated by cyclic voltammetry (CV) and Chronnoamperometry. The CuO-N/ITO electrode showed the best electrochemical properties for glucose detection in comparison to the others. Chronnoamperometry of CuO-N/ITO electrode to the glucose response showed excellent stability, the linear range of 1 mM to 3600 mM with high sensitivity of 283.6 mAcm-2mM-1 and 0.61 mM of the detection limit (S/N=3). A good response of the CuO-N/ITO electrode, which was investigated for different human serum samples, indicates a high potential of its towards a glucose sensor for analysis in real examples.

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