Nano Archive

Facile synthesis and electrochemical properties of octahedral gold nanocrystals

Wang, Dawei and Huang, Jianshe and Liu, Yang and Han, Xinyi and You, Tianyan (2011) Facile synthesis and electrochemical properties of octahedral gold nanocrystals. Journal of Nanoparticle Research, 13 (1). pp. 157-163.

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Official URL: http://www.springerlink.com/content/v07h883615363g...

Abstract

High-yield octahedral gold nanocrystals of ~45 nm in size have been facilely synthesized by one-pot reduction of HAuCl4 using formic acid in cetyltrimethylammonium bromide (CTAB) aqueous solution. The results showed that CTAB can promote the formation of single-crystalline nucleation and preferentially adsorb on the (111) planes of gold nanocrystals, resulting in the formation of octahedral gold nanocrystals. Formic acid acted as not only a mild reducing agent, but also could promote the formation of (111) facet. The octahedral gold nanocrystals exhibited similar cyclic voltammetry (CV) curves to single-crystal Au (111) electrode and excellent electrocatalytic activity for methanol oxidation. This synthetic strategy may open new route for facile synthesis of shape-controlled metal nanoparticles.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:10573
Deposited By:JNCASR
Deposited On:28 Feb 2011 06:34
Last Modified:28 Feb 2011 06:34

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