Home Kovove Materialy-Metallic Materials 2010 Metallic Materials Vol. 48 (2010), no. 2, pp. 145-152

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Metallic Materials Vol. 48 (2010), no. 2, pp. 145-152

Title: Controllable synthesis of multiple shapes of gold nanostructures
Author: WANG, L., SUN, L., LI, Z.

Abstract: Normal 0 21 false false false SK X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Normálna tabuľka"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} In this work, we present a simple one-step method to synthesize various gold nanostructures (microplates, nanowires and nanowire networks) with high yield using cinnamic acid (CA, C9H8O2) as reducing and capping agent through a thermal process. In this reaction system, by adjusting the concentration of CA from a high level to low level, the shape of the products was found to change from nanoparticles/microplates to two-dimensional nanowire networks/branched nanowires, ultimately to one-dimensional nanowires. Additionally, the size of the products increased with the increase in the concentration of HAuCl4 in the reaction system. The shape of the products was also strongly dependent on the pH of the reaction solution. By controlling the reaction time, the possible mechanism about the formation of different shape gold nanostructures was deduced.

Keywords: metal, nanostructure, crystal growth, TEM
Year: 2010, Volume: 48, Issue: 2 Page From: 145, Page To: 152

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