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Nickel cobaltite nano-composites have been prepared by a modified sol–gel process using nickel–cobalt acetates as precursors and citric acid-monoethylene glycol as stabilizers followed by calcination at 400 and 650 °C in air. X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) and thermogravimetry (TG-DTG), and energy dispersive X-ray (EDX), Fourier transform infrared (FTIR)...