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Investigations on the Structural, Morphological, Electrical, and Magnetic Properties of CuFe2O4−NiO Nanocomposites
| Content Provider | Semantic Scholar |
|---|---|
| Author | Selvan, Ramakrishnan Kalai Krishnan, Venkata Augustin, Chanassary Ouso Bertagnolli, Helmut Kim, Chang Gyoun Gedanken, Aharon |
| Copyright Year | 2008 |
| Abstract | CuFe2O4−xNiO (x = 1, 5, 10, and 20 wt %) nanocomposites have been successfully prepared by a simple combustion method using urea−nitrate precursors. The samples were sintered at different temperatures, namely 600, 800, 1000, and 1100 °C, for 5 h to enhance the compound formation and phase purity, studied by means of XRD patterns. Then the 1100 °C sintered sample was further characterized for its structural (EXAFS, XANES, FT-IR, UV–vis), morphological (SEM, TEM, HRTEM, SAED), electrical (ac conductivity, dielectric constant, dielectric loss tangent), and magnetic (Mossbauer) properties. The EXAFS and XANES studies reveal the formation of NiFe2O4 and CuO, in addition to the existence of CuFe2O4 and NiO phases. A partial substitution of metal cations by nickel ions could also be evidenced. The stretching and bending vibration of the tetrahedral and octahedral complexes have been established from FT-IR spectra. The UV–vis spectra elucidate that the prepared materials are semiconductors and also show the quant... |
| Starting Page | 429 |
| Ending Page | 439 |
| Page Count | 11 |
| File Format | PDF HTM / HTML |
| DOI | 10.1021/cm701937q |
| Alternate Webpage(s) | http://krc.cecri.res.in/ro_2008/015-2008.pdf |
| Alternate Webpage(s) | https://doi.org/10.1021/cm701937q |
| Volume Number | 20 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
