Synthesis of copper and copper oxide nanoparticles with different morphologies using aniline as reducing agent. (August 2021)

• Record Type: Journal Article
• Authors: Rostami-Tapeh-Esmaeil, Ehsan; Golshan, Marzieh; Salami-Kalajahi, Mehdi; Roghani-Mamaqani, Hossein
• Is Part Of: Solid state communications. Volume 334/335(2021)
• Publication Date: 2021-08
• Subjects: Copper nanoparticles -- Chemical reduction -- Aniline -- Polyol method -- Sodium dodecyl sulfate; Solid state chemistry -- Periodicals; Solid state physics -- Periodicals; Chimie de l'état solide -- Périodiques; Physique de l'état solide -- Périodiques; 530.41
• DOI: 10.1016/j.ssc.2021.114364
• Languages: English
• ISSNs: 0038-1098

Abstract

Abstract: Copper nanoparticles (CuNPs) are synthesized by chemical reduction of CuSO4 ·5H2 O salt in presence of aniline as reducing agent. The effects of CuSO4 ·5H2 O concentration, reaction temperature, molar ratio of [aniline]/[CuSO4 ·5H2 O], reaction media and presence of surface capping agent of sodium dodecyl sulfate (SDS) on the morphology and size of CuNPs are investigated. The results of X-ray diffraction (XRD) and UV-VIS-NIR spectroscopy exhibited that CuNPs tend to form cupric oxide (CuO) and cuprous oxide (Cu2 O) nanoparticles in aqueous media, but choosing ethylene glycol as reaction media diminished the copper oxide formation with acting as surface capping agent. Field emission scanning electron microscopy (FE-SEM) images showed that prepared nanoparticles had morphology of almond-like and flaky-like in water and ethylene glycol whereas presence of SDS led to formation spherical particles. Also, increasing CuSO4 ·5H2 O concentration in ethylene glycol increased the specific surface area (SSA) of CuNPs. Highlights: CuNPs are synthesized by chemical reduction of CuSO4 ·5H2 O by aniline. Effects of different parameters on morphology of CuNPs are investigated. CuNPs tend to form CuO and Cu2 O nanoparticles in aqueous media. Ethylene glycol diminished copper oxide formation. Nanoparticles had morphology of almond-like and flaky-like in water and ethylene glycol.