Electrodes double channel

C. Double tube electrode. Double channel electrode. 

Double channel electrodes were first used by Gerischer et al. [38] and this expression for AT0 was obtained by Braun [39] and subsequently experimentally verified [40]. 

Detector of double channel electrode (reactant produced at generator) Vf-1/3 (h2 d)1 3 X213 0.616 C (x, Edet) 157... 

The homogeneous reaction may be of first or second order in the latter case, X is a non-electroactive species. Both these cases have been studied at the rotating ring—disc electrode and the first-order case at a double channel electrode. 

First-order collection efficiencies at the double channel electrode... 

The double channel electrode in the investigation of electrode reaction mechanisms... 

In this section, the discussion centres on the application of double channel electrodes in the study of electrode reaction mechanisms under conditions of laminar flow. (The modifications necessary to what follows when turbulent flow operates can be found in Sect. 6.2.) When employed in this way, the upstream (generator) electrode produces the species of interest, which is then detected on the downstream electrode. This procedure is illustrated schematically in Fig. 37. In general, the detector electrode is held at a potential at which the destruction of the species produced upstream is diffusion-controlled. Kinetic and mechanistic information about the electrogenerated species is then available from "collection efficiency , N, measurements, given by... 

Steady-state collection efficiencies as a function of double channel electrode geometry when the product of the generator electrode reaction is kinetically stable on the channel electrode timescale... 

Mechanisms involving following chemical reactions treated by Matsuda and co-workers [126] for the double channel electrode... 

That double channel electrodes are ideally suited to the study of electrode reaction mechanisms involving following chemical reactions is illustrated by reference to studies on the electrochemical oxidation of 4-amino-iV, N,-di-methylaniline (ADMA) in basic solution at a platinum electrode [125], This reaction is thought to proceed via the scheme... 

Tsuru et al. [129-131] applied the double channel electrode transient technique to the investigation of the anodic dissolution of iron in sulphate and chloride aqueous media, in the pH range 1-3. The upstream electrode served as the generator electrode at which the anodic dissolution reaction occurred. Overall this involves... 

The Double Channel Electrode (DCE) and Double Tube Electrode (DTE)... 

P.R. Unwin. The ECE-DISPl problem—General resolution via double channel electrode collection efficiency measurements. J Electroanal Chem. 297 103 (1991). 

Heller-Ling, N., Prestst, M., Gautier, J.-L., Koenig, J.-F., Poillerat, G. and Chattier, P. Oxygen electroreduction mechanism at thin Ni.Covx04 spinel film in a double channel electrode flow cell (DCEFC) , Electrochim. Acta, 42 (1997) 197-202. 

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