Analytical cells (bulk electrolysis)

The BioLogic bulk electrolysis analytical cell is a specialized electrochemical cell designed for preparative electrochemistry and long-duration controlled-potential or controlled-current electrolysis experiments. Unlike standard analytical cells optimized for short-duration voltammetric measurements, the bulk electrolysis cell is designed to sustain extended electrolysis runs — hours or longer — for electrochemical synthesis, coulometric determination of analyte amounts, and characterization of reaction mechanisms by tracking total charge passed.

The cell features a design that separates the working electrode compartment from the counter electrode compartment, typically using a membrane, glass frit, or similar separator. This compartment separation prevents products generated at the counter electrode from contaminating the working electrode solution and interfering with the intended reaction, which is critical for electrochemical synthesis where product purity matters and for coulometric experiments where the faradaic yield must be accurately determined.

Common applications include preparative synthesis of electroactive compounds, determination of the number of electrons involved in a reaction (n-value) by controlled-potential coulometry, electrochemical degradation studies, and generation of reactive intermediates for in-situ spectroscopic characterization. The cell connects to BioLogic potentiostats and galvanostats for controlled-potential or controlled-current operation. NewRoad provides the BioLogic bulk electrolysis cell in Israel for preparative electrochemistry and coulometry laboratories.