Open AccessStructural characterization and rietveld refinement of CeO2/CoFe2O4 nanocomposites prepared via coprecipitation method
Author(s) -
Indu B. Vashistha,
Sunil Rohilla
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/872/1/012170
Subject(s) - rietveld refinement , materials science , coprecipitation , crystal structure , crystallography , bond length , nanocomposite , nanotechnology , chemistry , inorganic chemistry
The CeO 2 /CoFe 2 O 4 nanocomposites were synthesized through the co-precipitation approach followed by heat-treatment. As-prepared sample were sintered at temp 600°C and 800°C for two hours. To study the structural characterization of the prepared samples X-ray diffraction (XRD) technique was used. The obtained XRD data was further refined through the Rietveld method by using the fullprof suit software. The heat-treated samples exhibit two crystalline phases namely CeO 2 and CoFe 2 O 4 . The refinement confirmed that all the samples are cubic structure. The CoFe 2 O 4 was found to have an fcc cubic structure with space group Fd-3m(227), whereas the crystal structure of CeO 2 has fcc structure with space group Fm-3m(225). In this paper, the lattice parameters, bond length, bond angle, particle size, lattice strain, dislocation density were studied in detail. The Wyckoff positions and interatomic distance have been calculated.