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High performance of electrocatalytic oxidation in direct glucose fuel cell using molybdate nanostructures synthesized by microwave-assisted method

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  • Khoobi, Asma
  • Salavati-Niasari, Masoud

Abstract

Zinc molybdate nanostructures (ZMNPs) were synthesized by microwave-assisted route. ZMNPs were obtained from a mixture of sodium molybdate solutions and different zinc sources. The prepared nanostructures were characterized by different techniques such as Fourier transform infrared spectroscopy (FT-IR), powder X-ray diffraction (XRD) and scanning electron microscopy (SEM). The structural properties, phase purity, crystal systems and particles size were analyzed using FT-IR and XRD data. The morphological characteristics of the nanostructures were studied by SEM. At the next step, ZMNPs were added with a carbon paste electrode (CPE) to prepare a modified nano-structured sensor. The prepared CPE and ZMNPs/CPE catalysts were tested in direct glucose fuel cell. Electrochemical studies were performed using cyclic voltammetry (CV) and chronoamperometry experiments. The electrocatalytic oxidation of glucose at ZMNPs/CPE was significantly enhanced compared to CPE. Therefore, ZMNPs believed to show a key role as an electrocatalytic mediator to facilitate the charge transfer for the oxidation of glucose.

Suggested Citation

  • Khoobi, Asma & Salavati-Niasari, Masoud, 2019. "High performance of electrocatalytic oxidation in direct glucose fuel cell using molybdate nanostructures synthesized by microwave-assisted method," Energy, Elsevier, vol. 178(C), pages 50-56.
    • Handle: RePEc:eee:energy:v:178:y:2019:i:c:p:50-56
    DOI: 10.1016/j.energy.2019.04.143
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