Fe{sub 2}O{sub 3} core-NaCo[Fe(CN){sub 6}] shell nanoparticles-Synthesis and characterization

Journal Article · Thu Jul 15 04:00:00 EDT 2010 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2010.03.006· OSTI ID:22207335

Majdi, S. ^[1]; Sattarahmady, N. ^[2]

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1. Laboratory of Analytical and Physical Electrochemistry, Department of Chemistry, K.N. Toosi University of Technology, Tehran (Iran, Islamic Republic of)
2. Department of Biochemistry, Shiraz University of Medical Sciences, Shiraz (Iran, Islamic Republic of)

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-Fe{sub 2}O{sub 3}@NaCo[Fe(CN){sub 6}]). The morphology and structure of the as-prepared n-Fe{sub 2}O{sub 3}@NaCo[Fe(CN){sub 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-Fe{sub 2}O{sub 3}@NaCo[Fe(CN){sub 6}] were prepared and the electrochemical behavior of the nanoparticles was evaluated using cyclic voltammetry. The redox couples of n-Fe{sub 2}O{sub 3}@NaCo[Fe(CN){sub 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-Fe{sub 2}O{sub 3}@NaCo[Fe(CN){sub 6}] represented prominent electrocatalytic activity toward the oxidation of some biologically active compounds.

• OSTI ID: 22207335
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Journal Issue: 7 Vol. 45; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
ABSORPTION SPECTROSCOPY
CYANIDES
FERRITES
INFRARED SPECTRA
IRON OXIDES
NANOSTRUCTURES
THERMAL GRAVIMETRIC ANALYSIS
VOLTAMETRY
X-RAY DIFFRACTION
X-RAY PHOTOELECTRON SPECTROSCOPY