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Journal Articles Electrochemistry Communications Year : 2010

Amorphous carbon nitride a-CN microelectrode: Fabrication and characterization

Abstract

Fabrication and characterization of amorphous carbon nitride a-CNx microelectrodes are reported. These electrodes were prepared by DC-sputtering of a thin carbon layer on sharpened glass tip. The kinetic parameters (k0 and α) and the diffusion coefficient of the ferri-ferrocyanide redox probe were determined by steady-state voltammetry (CV) and by electrochemical impedance spectroscopy (EIS), and were used for characterizing both the electrochemical sensitivity of microelectrodes and their dimensions. The cathodic activation procedure of the electrode resulted in an increase of the electron rate constant. This procedure provides a new way for the fabrication of carbon microelectrodes for local electrochemical measurements.

Dates and versions

hal-04112031 , version 1 (31-05-2023)

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P. Tamiasso-Martinhon, Hubert Cachet, Claude Deslouis, Vincent Vivier. Amorphous carbon nitride a-CN microelectrode: Fabrication and characterization. Electrochemistry Communications, 2010, 12 (8), pp.1074-1076. ⟨10.1016/j.elecom.2010.05.030⟩. ⟨hal-04112031⟩
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