Yang L, Su J. Controllable fabrication and self-assembly of Cu nanostructures: the role of Cu
2+ complexes.
RSC Adv 2021;
11:17715-17720. [PMID:
35480168 PMCID:
PMC9033198 DOI:
10.1039/d1ra02408f]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 05/10/2021] [Indexed: 11/21/2022] Open
Abstract
The controllable fabrication of low dimensional nanostructures and the assembly of nanostructures into hierarchical higher order structures at the atomic or molecular level have been two hot-spots of current nano research. In this work, the fabrication and self-assembly of Cu nanostructures were carried out by reducing Cu2+ complexes in a mixed aqueous solution of NaOH and hydrazine hydrate at a water bath temperature of 60 °C. The reduction products were characterized using a metalloscope, a scanning electron microscope, a transmission electron microscope and a powder X-ray diffractometer. It was found that the fabrication and self-assembly of Cu nanostructures can be easily realized by controlling the types of Cu2+ complexes such as [Cu(OH)4]2−, [Cu(EDA)2]2+ and [Cu(EDA)(OH)2]. The authors further analyzed the important roles of Cu2+ complexes in the fabrication and self-assembly of Cu nanostructures. It was concluded that the Cu2+ complexes in the aqueous solution would spontaneously arrange into a certain soft template according to the principle of “like dissolves like” and the action of electrostatic forces of positive and negative charges. The as-formed templates determine the fabrication and self-assembly routes and the final products of the Cu nanostructures. Therefore, it provides a controllable and universal method for both fabrication and self-assembly of Cu nanostructures, which may have potential applications in the fields of electronic and optoelectronic nanodevices in the future.
Cu2+ complexes in aqueous solution would spontaneously arrange into a certain soft template, which determines the fabrication and self-assembly routes and the final products of Cu nanostructures.![]()
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