Electrochemical cells geometric configuration

All of the catalysts synthesized are listed in Table 2, and the performance in rotating disk electrode (RDE) in acid conditions are depicted in Fig. 6 [65, 67, 70-72]. In RDE tests (RRDE-3A ALS coupled with a Bio-Logic SP-150 multi-potentiostat), a conventional three-electrode electrochemical cell configuration, equipped with a glassy carbon disk working electrode (0.1256 cm geometric area), a Pt helical wire counter electrode, and a saturated calomel (SCE) reference electrode, was used. The activity of a commercial 40 % Pt/C (Hyspec 6000 from Johnson Matthey) catalyst was assessed as well, as reference catalyst toward ORR. 

Basically, an electrochemical detector for HPLC is a flow electrochemical cell which contains all of its basic elements (working, reference and auxiliary electrodes, holder, and connections) adapted to the experimental conditions expected in the chromatographic separations. The characteristics of the materials used for the holder and the electrodes construction must be compatible with typical mobile phases, working pressures, and temperatures employed in HPLC whereas the geometric configuration must provide an easy coupling... 

---