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 language | English |
|---|---|
| Title of host publication | Advanced Materials Research |
| Publisher | Trans Tech Publications Ltd |
| Pages | 297-302 |
| Number of pages | 6 |
| Volume | 1040 |
| ISBN (Print) | 9783038352648 |
| DOIs | |
| Publication status | Published - 2014 |
| Event | International Conference for Young Scientists “High Technology: Research and Applications 2014”, HTRA 2014 - Tomsk, Russian Federation Duration: 26 Mar 2014 → 28 Mar 2014 |
Publication series
| Name | Advanced Materials Research |
|---|---|
| Volume | 1040 |
| ISSN (Print) | 10226680 |
| ISSN (Electronic) | 16628985 |
Other
| Other | International Conference for Young Scientists “High Technology: Research and Applications 2014”, HTRA 2014 |
|---|---|
| Country | Russian Federation |
| City | Tomsk |
| Period | 26.3.14 → 28.3.14 |
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Keywords
- Cyclic voltammetry
- Gold nanoparticles
- Graphite electrode
ASJC Scopus subject areas
- Engineering(all)
Cite this
Electrochemical response of gold nanoparticles at a graphite electrode. / Perevezentseva, D. O.; Gorchakov, E. V.
Advanced Materials Research. Vol. 1040 Trans Tech Publications Ltd, 2014. p. 297-302 (Advanced Materials Research; Vol. 1040).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Electrochemical response of gold nanoparticles at a graphite electrode
AU - Perevezentseva, D. O.
AU - Gorchakov, E. V.
PY - 2014
Y1 - 2014
N2 - 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.
AB - 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.
KW - Cyclic voltammetry
KW - Gold nanoparticles
KW - Graphite electrode
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U2 - 10.4028/www.scientific.net/AMR.1040.297
DO - 10.4028/www.scientific.net/AMR.1040.297
M3 - Conference contribution
SN - 9783038352648
VL - 1040
T3 - Advanced Materials Research
SP - 297
EP - 302
BT - Advanced Materials Research
PB - Trans Tech Publications Ltd
ER -