Jump to main content
Jump to site search

Issue 20, 2009
Previous Article Next Article

Preparation of gold nanoparticles supported on glassy carbon by direct spray pyrolysis

Author affiliations

Abstract

A method for the preparation of gold nanoparticles supported on glassy carbon by direct spray pyrolysis in air at low temperature is presented. The procedure is based on the property of some gold salts which, unlike many other metal salts, decompose by heating at low temperature to produce metallic gold and gaseous species which depend on the salt nature. In the case of the present work, HAuCl4.nH2O was used, which decomposed to solid Au and gaseous H2O and chlorine containing compounds such as HCl and Cl2. This behaviour was verified by thermogravimetric analysis and X-ray diffraction. The gold nanoparticles supported on a glassy carbon electrode were obtained by the impact of HAuCl4 solution droplets generated by an ultrasonic atomizer. These droplets are directed through a nozzle towards the glassy carbon substrate located on a stainless steel block heated by electrical resistance. The supported gold nanoparticles were electrochemically characterized by cyclic voltammetry in acid solution and the surface morphology was characterized by SEM and AFM operated in the tapping mode.

Graphical abstract: Preparation of gold nanoparticles supported on glassy carbon by direct spray pyrolysis

Back to tab navigation

Publication details

The article was received on 25 Nov 2008, accepted on 03 Mar 2009 and first published on 27 Mar 2009


Article type: Paper
DOI: 10.1039/B821016K
Citation: J. Mater. Chem., 2009,19, 3276-3280
  •   Request permissions

    Preparation of gold nanoparticles supported on glassy carbon by direct spray pyrolysis

    M. A. Montero, M. R. Gennero de Chialvo and A. C. Chialvo, J. Mater. Chem., 2009, 19, 3276
    DOI: 10.1039/B821016K

Search articles by author

Spotlight

Advertisements