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IJC-A Vol.50A(02) [February 2011] >

Title: Synthesis of nickel nanoparticles with fcc and hcp crystal structures
Authors: Raj, K Joseph Antony
Viswanathan, B
Keywords: Nanomaterials
Crystal structure
Heat of reaction
Issue Date: Feb-2011
Publisher: NISCAIR-CSIR, India
Abstract: Nickel nanoparticles have been synthesized using nickel nitrate, vegetable oil and sucrose. Ethanol has been used as a solvent since the heat of reaction shows the destabilization of nickel particles if water is present in the synthesis mixture. Nickel with fcc phase is obtained by reduction with sucrose followed by stabilization using vegetable oil. Nickel or possibly nickel carbide with hcp structure is obtained by treatment with a mixture of oleylamine and methanol. The fcc and hcp crystal structures have been characterized by XRD. The calcination of nickel nanoparticles at 450 °C results in the sintering of nickel nanoparticles, thereby increasing the crystallite size. The scanning electron micrograph reveals that the particle size is in the range of 5 – 58 nm for fcc-Ni nanoparticles calcined at 450 °C for 10 min.
Page(s): 176-179
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-0975(Online); 0376-4710(Print)
Source:IJC-A Vol.50A(02) [February 2011]

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