ynthesis and structure of spinel-type oxides in Mn Co and Ni ternary system nanopowders at low temperature

NiCoxMn2-xO4 (x= 0, 0.4, 0.8, 1.2, 1.6) thermistors nanopowders have been synthesized by the auto combustion method at low temperatures.The size and morphology of the calcinated powders have been investigated using XRD and TEM techniques. The average particle size was estimated to be about 65nm in diameters with the cubic phase. The formation of spinel structure of powders has been studied by Fourier transform infrared (FTIR) spectroscopy.

Keywords:

NTC thermistors , Nanopowder , Spinel structure