Dual dynamic voltammetry with rotating ring–disk electrodes
The book chapter authored by
S. Vesztergom,
M. Ujvári and
G.G. Láng
(in Y. Saito and T. Kikuchi (eds): Voltammetry: Theory, Types and Application, pp. 249-268) is published by NOVA Science Publishers (2013, New York).
Abstract:
A novel voltammetric technique based on the simultaneous dynamic potential control of both the disk and the ring electrodes of an RRDE is presented. The method of dual cyclic voltammetry has proven to be an especially promising method for studying the mechanisms of electrochemical processes. The new 3D representation of the data can be effectively used in order to reveal the formation of electroactive species at the disk electrode. By using appropriate potential programs, the selectivity and sensitivity of RRDE systems can be significantly increased. The results of some selected experiments have been discussed and some drawbacks of the technique have been pointed out. Numerical simulations have been carried out in order to study the cross-talk effects, and a method has been suggested for their reduction.
