Abstract
<b> </b><b> </b>The focus of this study is to observe the effect of temperature on the size and morphology of nano-nickel particles. Nano-nickel particles have been prepared by a simple polymer-surfactant interaction of a cationic polymer poly vinyl pyrrolidone (PVP) with an anionic surfactant, sodium-dodecyl-sulphate SDS at different temperatures i.e. 60â, 80â and 100â. Nano-sized nickel particles were synthesized by using nickel chloride as the precursor, hydrazine as the reducing agent in the presence of SDS and PVP in a strong basic medium (pH-10.2). Our research shows that the rate of reduction increases as the reaction temperature was increased from 60â to 100â. Finer particles of diameters less than 10nm were formed as the temperature was increased from 60 to 100â. The morphology of the synthesized nano-nickel particles also varied as the temperature was increased. The concentration of nickel chloride and SDS/PVP was kept constant in all these experiments. The nano-sized nickel particles synthesized were characterized by using SEM and HRTEM.
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