Working Electrodes

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What is a Working Electrode? | Browse Working Electrodes | Working Electrode Material | Stationary vs. Rotating Electrode Other WE Designs | Selection Guide | Resources We offer working electrodes (WE) with various materials, geometries and sizes, which are compatible with our extensive range of electrochemical cells and other electrodes. Working Electrode in Three Electrode EC Cell What is a Working Electrode? A working electrode (WE) is a specific component in an electrochemical cell where the electrochemical reaction of interest occurs. The working electrode serves as the interface for the electron transfer and the redox process being investigated happens directly at the surface of the working electrode. It is the key site where the reaction of interest occurs. The potential of this electrode is varied to drive the desired chemical reaction and the current produced by the reaction at this electrode is measured by a Potentiostat. Common materials are selected for conductivity and inertness, including glassy carbon, gold or platinum, often fashioned into disc electrodes. Selecting the appropriate material and geometry is therefore critical to obtaining meaningful data. Once you finalize the experimental conditions, use the following criteria to choose a suitable working electrode for your electrochemical study: Will the electrode remain electrochemically stable under the intended conditions? Is the material chemically inert to the electrolyte? Does the material have good enough electrical conductivity? Does the material exhibit fast and well-defined electron transfer behaviour for the reaction? Will the electrode remain intact over multiple studies? Will the electrode maintain reproducible surface characteristics? To maintain the high quality of our working electrodes, consider using our electrode polishing kit. Browse all Working Electrodes Related categories: substrates and fabrication , electrochemical cells , photoelectrochemical cells , potentiostat , electroc