Solution Phase Synthesis of Cu(OH)₂ Nanoribbons by Coordination Self-Assembly Using Cu₂S Nanowires as Precursors

Abstract

Nanoribbons of Cu(OH) 2 have been synthesized by coordination self-assembly in solution. Techniques of XRD, TEM, HRTEM, SEM, ED, EDX, and XPS have been used to characterize the morphology, structure, and composition of the nanoribbons. The Cu(OH) 2 nanoribbons are 20−100 nm in width, several nm in thickness, and up to 100 µm in length. The basic building blocks of the coordination self-assembly are the square planar complexes of Cu 2+ , which are continuously supplied in a controlled manner from the Cu 2 S nanowires. NH 3 serves as a molecular transporter in the nanoribbon assembly process. The advantages of our method for the nanoribbon synthesis lie in the low temperature and mild reaction conditions, which permit large scale production at low cost.

Room-Temperature High-Performance H2S Sensor Based on Porous CuO Nanosheets Prepared by Hydrothermal Method

“…The porous structure is obviously different from the literature for those leaves-like or sheet structures of CuO. [25][26][27][28][29][30][31][32][33][34][35][36][37][38][39] The surface area of these CuO nanosheets obtained based on the BET method is 10.03 m 2 ·g -1 . These porous CuO nanosheets are efficient for the gas flowing in and out, thus enhancing their gas sensing performance.…”

Wire-like Bundle Arrays of Copper Hydroxide Prepared by the Electrochemical Anodization of Cu Foil

“…7,8 When an electrical potential was applied to copper foil in NaOH solution, its surface underwent an electrochemical oxidation process:…”

“…In their pioneering work, Wen et al reported the ability to synthesize Cu(OH)2 nanoribbons in an aqueous solution of ammonia by coordinating the self-assembly of square planar Cu 2+ complexes generated from Cu2S nanowires. 7 Various copper compound nanostructures, including nanotubes, nanowires, whiskers and nanosheets, have been grown directly by the chemical oxidation of copper foil in alkaline aqueous solutions with an oxidant additive [8][9][10][11] or by the electrochemical anodization in an alkaline solutions. 12 In particular, Xu and co-workers successfully prepared Cu(OH)2 nanowire and nanotube arrays on a copper substrate via the electrochemical route using an electrolyte solution of KOH.…”

Self‐Assembly Growth and Photocatalytic Performance of Nanostructured Copper Compounds

“…[22,23] Finally, 3D Cu(OH) 2 crystals can be obtained by stacking with relatively weak hydrogen bonds. When the concentration of NaOH is less than 1.25 mol/L, Cu(OH) 2 crystals tend to grow into nanowires along the [100] direction.…”