Facile synthesis of Ni/NiO nanocomposites via thermal decomposition
Aliakbar Dehno Khalaji
1
(Department of Chemistry, Faculty of Science, Golestan University, Gorgan, Iran)
Gholamhossein Grivani
2
(School of Chemistry, Damghan University, Damghan, P. O. Box 36715-364, Iran)
Shaghayegh Izadi
3
(School of Chemistry, Damghan University, Damghan, P. O. Box 36715-364, Iran)
Mehdi Ebadi
4
(Department of Chemistry, Islami Azad University, Gorgan Branch, Gorgan, Iran)
الکلمات المفتاحية: TEM, XRD, Thermal decomposition, Ni/NiO nanocomposites,
ملخص المقالة :
In this work, Ni/NiO nanocomposites have been prepared using simple, environment friendly and low-cost solid-state thermal decomposition method from mixture of nickel acetate tetrahydrate as a Ni precursor, 2-aminophenol and 4-dimethylaminobenzaldehyde at the molar ratio 1:2:2 at 400 and 500C for 3 hours. The Ni/NiO nanocomposites were characterized with Fourier transformed infra-red spectroscopy (FT-IR), X-ray powder diffraction (XRD), transmission electron microscopy (TEM) and X-Ray fluorescence (XRF). The XRD and XRF results confirmed that the nanocomposite products contain a mixture of nickel and nickel oxide. The Ni or NiO content vary with the temperature used for the synthesis. Upon increasing the temperature from 400 to 500C, the amount of NiO was found to be increase, due to a complete oxidation of Ni to NiO. The TEM images confiemed that the composites were spherical in shape with a distribution size of about 10-30 nm. In addition, the products display reasonable electrochemical performance.
