Synthesis of Copper Nanowires via a Complex-Surfactant-Assisted Hydrothermal Reduction Process

Abstract

This paper describes a simple complex-surfactant-assisted hydrothermal reduction approach to the facile synthesis of metal copper nanowires with average diameters of ∼85 nm and lengths of several tens of micrometers. These copper nanowires were formed through the reduction of the CuII−glycerol complexes (Cu(C3H6O3)) by phosphite (HPO3 2-) in the presence of surfactant sodium dodecyl benzenesulfonate (SDBS) at 120 °C. High-resolution transmission electron microscopy (HRTEM) and selected-area electron diffraction (SAED) indicate that the resulted nanowires had preferred [11̄0] growth direction. The formation mechanism for Cu nanowires had been properly proposed. Some influencing factors on the morphologies of the final products had also been discussed.

Disproportionation for Growing Copper Nanowires and their Controlled Self‐Assembly Facilitated by Ligand Exchange

“…[1][2][3] Alternatively, copper nanowires can also be electrochemically deposited on the step edges of substrates or into hard templates, [4][5][6][7][8][9][10][11][12][13][14] hydrothermally synthesized with carbon/ polymer coating in one-pot reactions, [15,16] or chemically prepared in aqueous solutions through chemical reduction of Cu II by strong reducing agents. [17][18][19][20][21][22][23] Herein, we describe copper nanowires chemically prepared in the organic phase through the controlled disproportionation of Cu I , which involves the initial dissolution of CuCl through coordination with oleylamine in organic solvent and the subsequent disproportionation of the Cu I complexes into metallic Cu 0 and bivalent Cu II at 200 8C. High-quality copper nanowires, approximately 50 nm in diameter, were produced readily in a safe and controlled manner, which is easy to scale-up.…”

Oleylamine Assisted Synthesis of Ultralong Copper Nanowires

“…al. using sodium dodecyl benzenesulfonate (SDBS) as the structure directing agent and phospate (HPO 3 2-) as the reducing agent [4]. In 2005, a synthesis method was developed by a Zeng et.…”

Obtaining ultra-long copper nanowires via a hydrothermal process

“…In particular, many efforts have been devoted to the preparation of copper nanowires because bulk copper exhibits higher thermal and electrical conductivity than many other metals and has been commonly used as interconnector in electronic circuits [6,7]. Nanoscaled copper wires may be used as an essential component in the future generation of nanodevices.…”

“…Developing a new method to obtain ultra-long and uniform copper nanowires in large-scale is still a challenge. Recently, Qian and co-workers have reported a complexsurfactant-assisted hydrothermal reduction process to prepare copper nanowires [7]. In their report, copper nanowires are prepared through the reduction of complex copper (II)-glycerol by HPO K2 3 in a high concentration of NaOH and glycerol aqueous solution with the assistance of sodium dodecyl benzenesulfonate (SDBS).…”