The counter electrode holder is used for holding a cylindrical electrode with diameter of 6 mm. It enables installation of a classical electrode in tanks of larger volumes. Moreover, it holds an ion-exchange or nanoporous membrane to separate the counter electrode from the working electrode environment. The nominal aperture (active membrane surface area) is 1cm2, but other value can be provided on request. The immersion (installation tube) has the outer diameter of 12 mm. The electrical connection is realized via Electrode Adapter Cable which converts 1 mm dia. male electrode pin into 4 mm female/male banana plug. The counter electrode holder is compatible with our Double-Holder and Triple-Holder Voltammetry Cell (both coming soon). We may also provide an adapter to install this counter electrode holder in openings larger than 12 mm dia. Moreover, the counter electrode holder may be  installed in a standard laboratory stand and immersed in a tank of any volume. 

The counter electrode holder elements are constructed with materials that are inert to the electrochemical system (PEEK). It well fits aqueous (FKM/EPDM O-Rings) and organic solvent (FFKM O-Rings) electrolyte requirements. The construction is well sealed which prevents the leakage (ion flow) bypassing the membrane. The counter electrode is not included in the setup. 

Application note
The counter electrode holder is used largely for voltammetry experiments where it is important to separate the counter electrode from the reaction products appearing at working electrode. It can be installed in a beaker type cell as well as in testing environments such as open water reservoirs, cans, tanks etc. It can also be used wherever it is necessary to use classical 6 mm dia. electrodes in larger volumes. 

Select electrolyte type:
water-based electrolyte
organic electrolyte