Facile Synthesis of Copper Nanoparticles in Glycerol at Room Temperature: Formation Mechanism

Huei, Ruey Ong and Khan, Maksudur R. and Ridzuan, Ramli and Yonghua, Du and Shibo, Xi and R. M., Yunus (2015) Facile Synthesis of Copper Nanoparticles in Glycerol at Room Temperature: Formation Mechanism. RSC Advances, 5 (31). pp. 24544-24549. ISSN 2046-2069. (Published)

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A copper sol is usually synthesized by the reduction of a copper precursor with a suitable reducing agent in the presence of a stabilizer. There are few reports regarding the preparation of copper nanoparticles in glycerol without using a stabilizing agent, but at elevated temperatures. The formation of reduced copper (Cu0) is usually verified by a UV-vis spectrophotometer where a ‘red copper sol’ was formed. In the present paper we synthesized the copper sol at room temperature in a glycerol medium using hydrazine as a reducing agent. The chemical states of copper in the sol and their composition were analyzed by X-ray absorption near edge structure spectroscopy (XANES) with the linear composition fitting method. A series-parallel mechanism of the reaction was proposed. An average particle size of 5 ± 1 nm was visualized via transmission electron microscopy (TEM).

Item Type: Article
Uncontrolled Keywords: Shake-Down Phenomena; Epitaxial Electrodeposition; Sonochemical Synthesis; Oxide; Reduction; Cu; Particles; Nanowires; Silver; Xanes
Subjects: T Technology > TP Chemical technology
Faculty/Division: Faculty of Chemical & Natural Resources Engineering
Depositing User: Mrs. Neng Sury Sulaiman
Date Deposited: 24 Apr 2015 07:26
Last Modified: 15 Jan 2018 04:17
URI: http://umpir.ump.edu.my/id/eprint/9080
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