Open Access

Impact of Reducing Agents on the Synthesis of Nickel Oxide Nanoparticles by Chemical Precipitation Method

V.Kayathri, Department of Physics, PSGR Krishnammal College For Women, Coimbatore, Tamilnadu, India. K.Kousalya, Department of Physics, PSGR Krishnammal College For Women, Coimbatore, Tamilnadu, India. A.Mafeena, Department of Physics, PSGR Krishnammal College For Women, Coimbatore, Tamilnadu, India. M.Monisha, Department of Physics, PSGR Krishnammal College For Women, Coimbatore, Tamilnadu, India. S.Naga Nandhini, Department of Physics, PSGR Krishnammal College For Women, Coimbatore, Tamilnadu, India. J.Balavijayalakshmi balavijayalakshmiroopa@gmail.com
Department of Physics, PSGR Krishnammal College For Women, Coimbatore, Tamilnadu, India.

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Abstract

This present work reports the synthesis ad characterization of Nickel oxide nanoparticles by chemical precipitation method from nickel chloride by using two different reducing agents, viz. ammonia (NH₃) and sodium hydroxide (NaOH).  The prepared nanoparticles were characterized by X-ray diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Field Emission-Scanning Electron Microscopy (FE-SEM) and Energy Dispersive X-ray analysis (EDAX) techniques.  XRD analysis showed that the prepared nanoparticles were crystalline in nature and the average crystallite size for NiO nanoparticles with NaOH and NH₃ were found to be 25.3 nm and 27.54 nm, respectively.  FE-SEM analysis revealed that the prepared nanoparticles were spherical in shape with agglomeration. The presence of functional groups of the prepared nanoparticles was confirmed by FT-IR analysis. The band at 450 cm^-1 corresponds to the stretching vibration on Ni-OH, confirming the presence of NiO and the elemental analysis confirmed the presence of nickel and oxygen elements in the prepared nickel oxide nanoparticles without any impurities.  The synthesized nickel oxide nanoparticles may be used in micro-supercapacitors, electrochromic coatings and chemical sensing devices.

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Reference

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