Facile synthesis of Ni/NiO nanocomposites via thermal decomposition

Journal of Nanoanalysis

مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 25 اردیبهشت 1397

نوع مقاله: Original Research Paper

شناسه دیجیتال (DOI): 10.22034/jna.2018.544203.1037

نویسندگان

Aliakbar Dehno Khalaji^{* 1}؛ Gholamhossein Grivani²؛ Shaghayegh Izadi²؛ Mehdi Ebadi³

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

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

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

چکیده

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.

کلیدواژه‌ها

Ni/NiO nanocomposites؛ Thermal decomposition؛ XRD؛ TEM