Abstract
In line with recycling and valuating the spend materials, we developed,in this work, a facile and innovative synthetic route to prepare NiO nanoparticles from spent Ni–Cd batteries, the nickel of which was obtained by H2SO4 leaching. Then, using Na2CO3 addition into the purified Ni-aqueous solution, the NiO nano-particles׳ precursor was obtained. Eventually, the NiO nanoparticles were synthesized by thermal decomposition of the precursor at 450°C. In turn, the synthesized materials were characterized by means of XRD, TEM, thermogravimetric analysis–differential scanning calorimeter (TGA–DSC) and infrared spectrum (IR) techniques.
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