One-step large-scale synthesis of micrometer-sized silver nanosheets by a template-free electrochemical method
Open Access
- 22 May 2013
- journal article
- Published by Springer Nature in Discover Nano
- Vol. 8 (1) , 248
Abstract
We have synthesized micrometer-sized Ag nanosheets via a facile, one-step, template-free electrochemical deposition in an ultra-dilute silver nitrate aqueous electrolyte. The nanosheet growth was revealed to occur in three stages: (1) formation of polygonal Ag nuclei on a substrate, (2) growth of {112}-faceted nanowire from the nuclei, and (3) anisotropic growth of (111)-planar nanosheets, approximately 20 to 50 nm in thickness and 10 μm in width, in the −direction. The vertical growth of the facet nanowire was induced by the strong interface anisotropy between the deposit and electrolyte due to the ultra-dilute concentration of electrolyte and high reduction potential. The thickness of Ag nanosheets was controllable by the adjustment of the reduction/oxidation potential and frequency of the reverse-pulse potentiodynamic mode.Keywords
This publication has 26 references indexed in Scilit:
- Electrochemical Growth of Silver Nanobelts in Cylindrical Alumina NanochannelsCrystal Growth & Design, 2011
- Metal Nanoplates on Semiconductor SubstratesAdvanced Functional Materials, 2010
- Vertically cross-linking silver nanoplate arrays with controllable density based on seed-assisted electrochemical growth and their structurally enhanced SERS activityJournal of Materials Chemistry, 2009
- Mode-Selective Surface-Enhanced Raman Spectroscopy Using Nanofabricated Plasmonic Dipole AntennasThe Journal of Physical Chemistry C, 2009
- Metastability of multitwinned Ag nanorods: Molecular dynamics studyPhysical Review B, 2008
- Trapeziform Ag Nanosheet Arrays Induced by Electrochemical Deposition on Au-Coated SubstrateCrystal Growth & Design, 2008
- Controlled Synthesis of Gold Nanobelts and Nanocombs in Aqueous Mixed Surfactant SolutionsLangmuir, 2008
- Control Synthesis of Silver Nanosheets, Chainlike Sheets, and Microwires via a Simple Solvent−Thermal MethodCrystal Growth & Design, 2007
- Structural studies of trigonal lamellar particles of gold and silverProceedings of the Royal Society of London. Series A: Mathematical and Physical Sciences, 1993
- Surface-enhanced resonance Raman and electrochemical investigation of glucose oxidase catalysis at a silver electrodeJournal of the American Chemical Society, 1989