Electrochemical behavior of new electrode material: Compact of boron-doped synthetic diamond
- Authors: Pleskov Y.V.1, Krotova M.D.1, Elkin V.V.1, Ekimov E.A.2
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Affiliations:
- Frumkin Institute of Physical Chemistry and Electrochemistry
- Institute for High Pressure Physics
- Issue: Vol 52, No 1 (2016)
- Pages: 1-6
- Section: Article
- URL: https://journals.rcsi.science/1023-1935/article/view/187676
- DOI: https://doi.org/10.1134/S1023193516010079
- ID: 187676
Cite item
Abstract
Electrochemical properties of new electrode material—compact of boron-doped synthetic diamond—is studied for the first time. Cylindrical samples 3.5–4 mm in diameter and 2.5 mm in height were obtained by thermobaric processing of graphite–boron carbide mixtures in the diamond thermodynamic stability region (at the pressure of 8–9 GPa and temperature of ~2500 K). Their electrode behavior is studied using cyclic voltammetry and electrochemical impedance spectroscopy techniques. The cyclic voltammograms of the compact samples showed that their electrode characteristics are similar to those of traditional thin-film diamond electrodes obtained by the chemical vapor deposition (CVD) technique. In particular, they demonstrate rather wide potential window, low background current in indifferent electrolytes, and good reproducibility. It can be concluded that the diamond compacts practically are not inferior to the thin-film CVD-diamond electrodes and can serve as indicator electrodes, e.g., in electroanalysis. At the same time their compact form may be a convenience in the designing of electrolyzers and other electrochemical devices.
About the authors
Yu. V. Pleskov
Frumkin Institute of Physical Chemistry and Electrochemistry
Author for correspondence.
Email: pleskov@electrochem.msk.ru
Russian Federation, Leninskii pr. 31, Moscow, 119071
M. D. Krotova
Frumkin Institute of Physical Chemistry and Electrochemistry
Email: pleskov@electrochem.msk.ru
Russian Federation, Leninskii pr. 31, Moscow, 119071
V. V. Elkin
Frumkin Institute of Physical Chemistry and Electrochemistry
Email: pleskov@electrochem.msk.ru
Russian Federation, Leninskii pr. 31, Moscow, 119071
E. A. Ekimov
Institute for High Pressure Physics
Email: pleskov@electrochem.msk.ru
Russian Federation, Troitsk, Moscow, 142190