SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2022, Vol. 44 ›› Issue (4): 284-291.DOI: 10.1016/j.cjche.2021.03.003

Previous Articles     Next Articles

Evolution of copper nanowires through coalescing of copper nanoparticles induced by aliphatic amines and their electrical conductivities in polyester films

Mingxia Tian, Aili Wang, Hengbo Yin   

  1. Faculty of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
  • Received:2020-11-15 Revised:2021-03-03 Online:2022-06-18 Published:2022-04-28
  • Contact: Aili Wang,E-mail:alwang@ujs.edu.cn;Hengbo Yin,E-mail:yin@ujs.edu.cn
  • Supported by:
    This work was financially supported by the fund from the Jiangsu Science and Technology Department, China (FZ20180919). We also sincerely thank Dr. Kangmin Chen for his helpful support on TEM and HRTEM analyses.

Evolution of copper nanowires through coalescing of copper nanoparticles induced by aliphatic amines and their electrical conductivities in polyester films

Mingxia Tian, Aili Wang, Hengbo Yin   

  1. Faculty of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
  • 通讯作者: Aili Wang,E-mail:alwang@ujs.edu.cn;Hengbo Yin,E-mail:yin@ujs.edu.cn
  • 基金资助:
    This work was financially supported by the fund from the Jiangsu Science and Technology Department, China (FZ20180919). We also sincerely thank Dr. Kangmin Chen for his helpful support on TEM and HRTEM analyses.

Abstract: Copper nanowires were synthesized by the wet chemical reduction method using copper sulfate as the copper precursor, aliphatic amines (methylamine, ethanediamine, 1,2-propanediamine) as the inducing reagents, and hydrazine hydrate as the reductant through the aging and reduction processes. The high-resolution transmission electron microscopy (HRTEM) images reveal that the copper nanowires were synthesized by coalescing extremely small-sized copper nanoparticles with the particle sizes of 1–6 nm in copper complex micelles. A longer aging time period favored the coalescing of the copper nanoparticles to form thinner copper nanowires in the following reduction process. The coalescing extent of copper nanoparticles in copper nanowires was highly enhanced by ethanediamine and 1,2-propanediamine as compared with that by methylamine. The copper nanowire-filled polyester films had higher electrical conductivity than the copper nanoparticle-filled ones.

Key words: Nanomaterials, Nanostructure, Electronic materials, Copper nanowires, Electrical conductivity, Polyester film

摘要: Copper nanowires were synthesized by the wet chemical reduction method using copper sulfate as the copper precursor, aliphatic amines (methylamine, ethanediamine, 1,2-propanediamine) as the inducing reagents, and hydrazine hydrate as the reductant through the aging and reduction processes. The high-resolution transmission electron microscopy (HRTEM) images reveal that the copper nanowires were synthesized by coalescing extremely small-sized copper nanoparticles with the particle sizes of 1–6 nm in copper complex micelles. A longer aging time period favored the coalescing of the copper nanoparticles to form thinner copper nanowires in the following reduction process. The coalescing extent of copper nanoparticles in copper nanowires was highly enhanced by ethanediamine and 1,2-propanediamine as compared with that by methylamine. The copper nanowire-filled polyester films had higher electrical conductivity than the copper nanoparticle-filled ones.

关键词: Nanomaterials, Nanostructure, Electronic materials, Copper nanowires, Electrical conductivity, Polyester film