Ring—disc electrodes

Albery W J and HItchman M L 1971 Ring-Disc Electrodes (Oxford Clarendon)... 

Albery W J and Brett C M A 1983 The wall-]et ring disc electrode. 1. Theory J. Electroanal. Chem. 148 201... 

The diffusion layer widtli is very much dependent on tire degree of agitation of tire electrolyte. Thus, via tire parameter 5, tire hydrodynamics of tire solution can be considered. Experimentally, defined hydrodynamic conditions are achieved by a rotating cylinder, disc or ring-disc electrodes, for which analytical solutions for tire diffusion equation are available [37, 4T, 42 and 43]. 

Alb Albery, W.J., Hitchman, M.L Ring-Disc Electrodes, Oxford Clarendon Press, 1971. 

Sakashita M, Lochel B, Strehblow HH (1982) An examination of the electrode reactions of Te, HgTe and Cdo.iHgo.sTe with rotating-split-ring-disc electrodes. J Electroanal Chem 140 75-89... 

W. J. Albery and M. L. Hitchman, Ring-Disc Electrodes, Oxford University Press, Oxford, 1971. 

Here we have to deal with three types (see Fig. 3.68), viz. (a) the rotating disc electrode (RDE), and (b) the rotating ring electrode (RRE) and the rotating ring-disc electrode (RRDE). The construction of the latter types suits all purposes, i.e., if the disc or the ring is not included in the electric circuit, it yields an RRE or an RDE, respectively, and if not an RRDE, where either the disc forms the cathode and the ring the anode, or the reverse. 

The Controlled-Convection Techniques The Rotating Disc and Rotating Ring-Disc Electrodes... 

Albery, W.J. and Hitchman, M. (1971) Ring Disc Electrodes, Clarendon Press, Oxford. 

The controlled-convection techniques the rotating disc and rotating ring-disc electrodes... 

There arc many controllcd-convection techniques available but we will restrict our discussion to the two most commonly employed by the electrochemist the rotating disc electrode (RDE) and the rotating ring disc electrode (RRDE). 

Figure 2.92 Schematic of a ring-disc electrode (see text for details).

We consider the investigation of two consecutive electron-transfer reactions with a ring-disc electrode under stationary conditions. A species A reacts in two steps on the disk electrode first to an intermediate B which reacts further to the product C. The intermediate is transported to the ring, where the potential has been chosen such that it reants bank to A. The overall scheme is ... 

To learn that the rotated ring-disc electrode (RRDE) is one of the most powerful analytical tools for following the kinetics of fast homogeneous reactions. 

Figure 7.9 Schematic representation of a rotated ring-disc electrode, defining the radii ri (the radius of the disc), and rj and rs (the inner and outer radii of the ring, respectively).

The rotated ring-disc electrode (RRDE) has been shown to be an ideal tool for measuring the rate constants of very fast homogeneous reactions. In this method, we start with one reagent in the solution while the other is electrogenerated at the disc electrode, with the proportion of the latter that remains after reaction being monitored at the ring electrode. 

Albery, W. J. and Hitchman M. L., Ring-Disc Electrodes, Oxford University Press, Oxford, 1971. This now-classic book describes one of the most formidable tools in the arsenal of the electroanalyst, i.e. the rotated ring-disc electrode (RRDE). Its first two chapters are a clear and lucid introduction to the basic rotated disc electrode (RDE) and the multi-faceted problems of mass transport. Well worth a read, if only for the occasional dip into this field. 

Rotated ring-disc electrode (RRDE) Disc electrode within a concentric ring electrode. 

Novak and Boa [176], using ring-disc electrode techniques, studied intermediates and transients in the fluorination of acetyl fluoride and methanesulphonyl fluoride and concluded that the initial step was the discharge of the organic substrate in the adsorbed state, according to the following scheme ... 

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