Abstract
Cobalt hydroxide nanoparticles were prepared through the use of a two-step reaction, template- and surfactant-free, using cobalt chloride with ammonia solution at room temperature. The prepared materials were characterized by Fourier transform infrared, X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The obtained cobalt hydroxide nanoparticles can be easily converted to cobalt oxide nanoparticles by calcining at 500 °C for 2 h. The growth mechanism of the synthesized nanoparticles are also discussed in detail based on the experimental results. Cobalt oxide nanoparticles were immobilized on the surface of a glassy carbon electrode (GCE) and applied to construct an electrochemical sensor. The obtained cobalt oxide-modified GCE showed one pair of redox peaks and high catalytic activity for the oxidation of Levodopa and Serotonin.
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We greatly appreciate the support of the Payame Noor University, Tehran, Iran and the Drug Applied Research Center, Tabriz University of Medical Science.
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Saghatforoush, L.A., Sanati, S. & Hasanzadeh, M. Synthesis, characterization and electrochemical properties of Co3O4 nanostructures by using cobalt hydroxide as a precursor. Res Chem Intermed 41, 4361–4372 (2015). https://doi.org/10.1007/s11164-014-1535-7
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DOI: https://doi.org/10.1007/s11164-014-1535-7