Exploring the Properties of NiO Nanoparticles Prepared by Reflux Method

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A. Dhayal Raj, A. Albert Irudayaraj, A. Reenaarul Vani (2017). Exploring the Properties of NiO Nanoparticles Prepared by Reflux MethodMechanics, Materials Science & Engineering, Vol 10. doi:10.2412/mmse.25.82.979

Authors: A. Dhayal Raj, A. Albert Irudayaraj, A. Reenaarul Vani

ABSTRACT. Admirable nanoparticles of nickel oxide have been synthesized by Reflux method. Required amount of nickel nitrate was dissolved in 200ml of Ethylene Glycol (EG).To the above solution 50ml of PEG was added and stirred well. The pH of the solution was adjusted as 8, 10 and 12 using HCl in order to investigate the effect of pH on the properties of the prepared NiO nanoparticles. The precipitate was collected, washed several times and was calcinated at 500oC for 1 hr. The samples were subjected to various characterizations such asXRD, SEM, UV and FTIR, inorder to study its structure, morphology, optical properties and functional group. The results show that pH plays a key role in the synthesis of NiO nanostructures. The morphology of the prepared samples holds substantial promise for applying NiO as a potential gas sensing material.

Keywords: NiO nanostructures, pH, SEM, XRD, reflux method

DOI 10.2412/mmse.25.82.979

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