Thermal Decomposition of Metal Tartrates through the Prepration of Nano Cobalt Ferrite | ||
| Journal of Basic and Environmental Sciences | ||
| Volume 1, Issue 2, April 2014, Pages 46-64 PDF (1.35 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jbes.2014.369572 | ||
| Authors | ||
| M. Sameeh1; M. Khairy2; W. A. Bayoumy2; Tomader El-asawi1; A.A. El-bellihi2 | ||
| 1Chemistry department, faculty of science, Benha University, Benha, Egypt | ||
| 2Chemistry department, faculty of science, Benha University, Benha, Egypt. | ||
| Abstract | ||
| Nano-crystalline CoFe2O4 particles were synthesized through thermal decomposition of cobalt tartrate- ferric tartrate at 250, 450, 750 and 1050oC. The samples were characterized by XRD, DSC-TG, SEM, TEM and FT-IR. The XRD analysis showed that the sample calcined at 1050 oC exhibit pure spinel phase. The crystallite sizes lie in the range of 30 – 61 nm. The samples obtained at different calcination temperatures have different morphologies. The kinetics of thermal decomposition of metal tartrate mixtures were studied using non-isothermal thermogravimetric techniques. The thermal decomposition proceeds in three steps for cobalt iron (III) tartrate. The kinetic analysis of non-isothermal data of the decomposition reaction is best described by the Random nucleation in (three-dimentions) (A4) models. The activation parameters were calculated and the results of the dynamic integral methods were compared and discussed | ||
| Keywords | ||
| Nano CoFe2O4; Spine; Tartrate salts; Thermal kinetics; Eelectrical conductivity | ||
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