Facile synthesis of Ni/NiO nanocomposites via thermal decomposition

Document Type: Original Research Paper

Authors

1 Department of Chemistry, Faculty of Science, Golestan University, Gorgan, Iran

2 School of Chemistry, Damghan University, Damghan, P. O. Box 36715-364, Iran

3 Department of Chemistry, Islami Azad University, Gorgan Branch, Gorgan, Iran

10.22034/jna.2018.544203.1037

Abstract

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 500C 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 500C, 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.

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