Novel synthesis of copper nanoparticles: influence of the synthesis conditions on the particle size

This paper presents a novel method for the preparation of copper nanoparticles by reducing CuSO4 with hydrazine in ethylene glycol under microwave irradiation. The influences of reaction parameters such as molar ratios of N2H4·H2O /CuSO4 and NaOH/CuSO4, heating method and reaction temperature on the particle size and composition of powder were investigated by x-ray diffractometry (XRD), transmission electron microscopy (TEM) and particle size analysis. Well-dispersed copper nanopowder with a diameter of about 15 nm was obtained in the absence of a protective polymer.

[1]  D. J. Kim,et al.  Dispersed rodlike nickel powder synthesized by modified polyol process , 2003 .

[2]  Szu-Han Wu,et al.  Synthesis and characterization of nickel nanoparticles by hydrazine reduction in ethylene glycol. , 2003, Journal of colloid and interface science.

[3]  Jun-Jie Zhu,et al.  Preparation of CuO nanoparticles by microwave irradiation , 2002 .

[4]  T. Mukherjee,et al.  Preparation, characterization and surface modification of Cu metal nanoparticles , 2002 .

[5]  A. Kolubaev,et al.  Study of friction reduction by nanocopper additives to motor oil , 2002 .

[6]  William W. Yu,et al.  ANOMALOUSLY INCREASED EFFECTIVE THERMAL CONDUCTIVITIES OF ETHYLENE GLYCOL-BASED NANOFLUIDS CONTAINING COPPER NANOPARTICLES , 2001 .

[7]  Lu,et al.  Superplastic extensibility of nanocrystalline copper at room temperature , 2000, Science.

[8]  Y. Xuan,et al.  Heat transfer enhancement of nanofluids , 2000 .

[9]  V. Iyer,et al.  Radiation induced synthesis and characterization of copper nanoparticles , 1998 .

[10]  Qi,et al.  Synthesis of Copper Nanoparticles in Nonionic Water-in-Oil Microemulsions , 1997, Journal of colloid and interface science.

[11]  王必勋,et al.  Cu-ZSM-5分子筛上[Cu-O-Cu] 2+ 物种的原位红外光谱研究 , 1995 .

[12]  B. Ninham,et al.  Synthesis of Copper Nanosize Particles in Anionic Reverse Micelles: Effect of the Addition of a Cationic Surfactant on the Size of the Crystallites , 1995 .

[13]  F. Fiévet,et al.  Controlled nucleation and growth of micrometre-size copper particles prepared by the polyol process , 1993 .

[14]  B. Beaudoin,et al.  Homogeneous and heterogeneous nucleations in the polyol process for the preparation of micron and submicron size metal particles , 1989 .