TY - JOUR
AU1 - Vesztergom, Soma
AU2 - Kovács, Noémi
AU3 - Ujvári, Mária
AU4 - Láng, Gyözö G.
AB - AbstractWhen studying electrochemical processes, one of the most widely used methods of determining the reaction pathway is anelectrochemical assay of products using a rotating ring–disk electrode (RRDE). An RRDE tip consists of two electronconducting parts: a centrally located disk and a ring around it. When brought into contact with an electrolyte solution,the disk and the ring both form electrodes, the potentials of which can be independently controlled by a bi-potentiostat.When the tip is rotated, reactants from the solution arrive at the disk where they undergo an electrode reaction(oxidation or reduction) at a given rate, depending on the rotation speed. The formed products leave the disk surface anddue to forced convection make their way towards the ring electrode where they can undergo another electrode reaction andcan thus be detected. Normally, one applies potentiostatic control to at least one of the electrodes when carrying out anRRDE experiment; albeit the simultaneous potentiodynamic perturbation of the electrodes offers an increased applicabilityrange. This paper presents the construction of a measuring system capable for the “bi-potentiodynamic” perturbation oftwo working electrodes, and demonstrates the use of such methods in case of a few chosen example systems.
TI - Apparatus and methods for using a rotating ring–disk electrode with potentiodynamic control of both working electrodes
JF - tm - Technisches Messen
DO - 10.1515/teme-2016-0083
DA - 2017-10-26
UR - https://www.deepdyve.com/lp/de-gruyter/apparatus-and-methods-for-using-a-rotating-ring-disk-electrode-with-U9nhoRE3PI
SP - 683
EP - 696
VL - 84
IS - 10
DP - DeepDyve
ER -