Electrochemical response of gold nanoparticles at a graphite electrode

D. O. Perevezentseva, E. V. Gorchakov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

The electrochemical activity of gold nanoparticles at graphite electrodes by the method of cyclic voltammetry is studied. In this article the nature of the supporting electrolyte, modification time of graphite electrode by gold nanoparticles and the potential range on the value of the “inverse” cathodic peak are investigated. The “inverse” cathodic peak of gold nanoparticles formed in the reaction mixture HAuCl4:Na3C6H5O7:NaBH4=1:1:4 is observed on the cathodic branch of cyclic voltamperegram at Ec = 0.05 V at graphite electrode. The mechanism of stepwise electrochemical oxidation and reduction of the phase structure of gold on the surface of the graphite electrode in 0.1 M NaOH is offered. The “inverse” cathodic peak of gold nanoparticles on the cathodic branch of cyclic voltammogram at graphite electrode is caused by oxidation of Au2O to Au2O3.

Original languageEnglish
Title of host publicationAdvanced Materials Research
PublisherTrans Tech Publications Ltd
Pages297-302
Number of pages6
Volume1040
ISBN (Print)9783038352648
DOIs
Publication statusPublished - 2014
EventInternational Conference for Young Scientists “High Technology: Research and Applications 2014”, HTRA 2014 - Tomsk, Russian Federation
Duration: 26 Mar 201428 Mar 2014

Publication series

NameAdvanced Materials Research
Volume1040
ISSN (Print)10226680
ISSN (Electronic)16628985

Other

OtherInternational Conference for Young Scientists “High Technology: Research and Applications 2014”, HTRA 2014
CountryRussian Federation
CityTomsk
Period26.3.1428.3.14

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Keywords

  • Cyclic voltammetry
  • Gold nanoparticles
  • Graphite electrode

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Perevezentseva, D. O., & Gorchakov, E. V. (2014). Electrochemical response of gold nanoparticles at a graphite electrode. In Advanced Materials Research (Vol. 1040, pp. 297-302). (Advanced Materials Research; Vol. 1040). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/AMR.1040.297