Abstract
CoxNiMn2−xO4 (0.2⩽x⩽1.2) spinel-type powders were prepared by auto-combustion of ethylene glycol–metal nitrate polymerized gel precursors, and the thermal behaviour of the different samples was independent of the chemical composition. The formation of a pure spinel-type phase, with no intermediate compounds, was attained from the burning of the polymerized gel precursor and subsequent calcining at 600–700 °C. The formation and the microstructural evolutions of the spinel-type phase have been studied by Fourier transform infrared (FTIR) spectroscopy, simultaneous thermogravimetric and differential thermal analysis (TG/DTA), X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Powder characteristics such as particle size and specific surface areas of the calcined powders were dependent of the chemical compositions. In the same way, the crystalline structure of the synthesized spinel-type phases were strongly dependent of the Co content.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
