Green gelatine-assisted sol–gel synthesis of ultrasmall nickel oxide nanoparticles

Pilban Jahromi, S. and Huang, N.M. and Muhamad, M.R. and Lim, H.N. (2013) Green gelatine-assisted sol–gel synthesis of ultrasmall nickel oxide nanoparticles. Ceramics International, 39 (4). pp. 3909-3914. ISSN 02728842

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Official URL: http://dx.doi.org/10.1016/j.ceramint.2012.10.237

Abstract

Nickel oxide nanoparticles (NiO NPs) were synthesised using a sol gel method in a gelatinous medium. Gelatine was used as a size-limiting polymerisation agent for the growth of NiO NPs. X-ray diffraction (XRD) analysis revealed that increasing the calcination temperature increased the crystallite size and decreased the size of the lattice constant. The size-strain plot method (SSP) was used to measure the individual contribution of grain sizes and micro strain on the peak broadening of NiO NPs. Transmission electron microscopy (TEM) showed the ultrasmall size of the NiO NPs with a narrow size distribution(10 +/- 0.2 nm). The band gap value of NiO NPs was calculated using ultraviolet visible (UV-Vis) spectroscopy and decreased with increased calcination temperature. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

Item Type: Article
Subjects: Q Science > Q Science (General)
Depositing User: Ms Rosnani Abd Wahab
Date Deposited: 13 Jun 2013 03:27
Last Modified: 18 Feb 2014 09:14
URI: http://shdl.mmu.edu.my/id/eprint/3851

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