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Fe2O3 core-NaCo[Fe(CN)6] shell nanoparticles—Synthesis and characterization |
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| Authors: | H. Heli S. Majdi |
| Affiliation: | a Department of Chemistry, Islamic Azad University, Fars Science and Research Branch, P.O. Box 73715-181, Marvdasht, Iran b Young Researchers Club, Islamic Azad University, Fars Science and Research Branch, Marvdasht, Iran c Laboratory of Analytical and Physical Electrochemistry, Department of Chemistry, K.N. Toosi University of Technology, Tehran, Iran d Department of Biochemistry, Shiraz University of Medical Sciences, Shiraz, Iran |
| Abstract: | A facile precipitation route was developed for the synthesis of cobalt hexacyanoferrate (CoHCF) as a thin shell around cores of nanoparticles of iron(III) oxide, forming nanoparticles of iron(III) oxide@CoHCF (n-Fe2O3@NaCo[Fe(CN)6]). The morphology and structure of the as-prepared n-Fe2O3@NaCo[Fe(CN)6] were characterized by the techniques of electron microscopies, X-ray diffraction measurements, X-ray photoelectron spectroscopy, infrared spectroscopy and thermogravimetry. Carbon composite electrodes of n-Fe2O3@NaCo[Fe(CN)6] were prepared and the electrochemical behavior of the nanoparticles was evaluated using cyclic voltammetry. The redox couples of n-Fe2O3@NaCo[Fe(CN)6] were investigated and the diffusion coefficients of counter cation in the shell of CoHCF were obtained. The effect of size of particles and the structure of CoHCF was also evaluated. n-Fe2O3@NaCo[Fe(CN)6] represented prominent electrocatalytic activity toward the oxidation of some biologically active compounds. |
| Keywords: | A. Inorganic compounds A. Nanostructures C. Electrochemical measurements D. Electrochemical properties |
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