Cyclic voltammetry

Abstract

A simple experiment is descried here that has become extremely popular in chemical research because it can provide useful information about redox reactions in a form that is easily obtained and interpreted. In this paper the authors present the principles of the method and illustrate its use in the study of four electrode reactions. From State-of-the-Art Symposium: Electrochemistry, ACS meeting, Kansas City, 1982.

Isolation, purification, and characterization of bovine heart and yeast cytochromes c: An integrated biochemistry laboratory experience

“…This time, a peak occurs at E pa (anodic peak potential) as the maximum current due to reoxidation of the cytochrome c occurs. The average of E pa and E pc is approximately equal to the oxidation-reduction potential [21,23]. The oxidation-reduction potentials obtained by the students are generally a bit lower than the expected oxidation-reduction potential of 53 mV.…”

“…The techniques of CV and DPV have been reviewed [21][22][23][24]. It is not necessary for the students to understand these techniques in depth.…”

“…Cyclic voltammetry [21,23] is a quickly performed sweep technique. The experiment is started at a potential where no oxidation-reduction chemistry is expected to occur.…”

Ruthenium and iron complexes with benzotriazole and benzimidazole derivatives as simple models for proton-coupled electron transfer systems

“…The half-wave potential (E 1/2 ; experimentally measured by cyclic 34,35 or differential pulse voltammetry 34,36 ) is predicted to have a pH dependence according to the Nernst equation 34 , which in the particular case of one-electron/one-proton redox couples, as in Eq. (3), reduces to a simplified expression (Eq.…”

Implantable Electrodes with Carbon Nanotube Coatings

“…This movement of electrons generates current in the electrode circuitry. The reaction at the electrode surface varies from reduction, oxidation or none (Evans et al, 1983) and depends on the electrode potential. In a completely reversible system, species reduced in the forward scan of each cycle are reoxidized during the reverse scan.…”