Blues Player

An Unbiased View of Potentiostat

Potentiostat / galvanostat / EIS

Potentiostats/galvanostats are designed to carry out electrochemical measurements for applications like corrosion, coatings, batteries, general electrochemistry and many more. Electrochemical Impedance Spectroscopy (EIS) is an option in each instrument. This type of analysis technique is used for studies of corrosion, photovoltaic systems, batteries and in various life science applicationsOther options include a vast range of current and voltage boosters.

We offer a variety of Potentiostat by BioLogic Science Instruments. Our range of products comprises single potentiostats / galvanostats – which can be made bipotentiostat-like – and multichannel potentiostats / galvanostats that have up to 16 channels that can test up to 16 electrochemical studies simultaneously.

How does a p-potentiostat / galvanostat function?

The basic potentiostat utilizes three electrodes (2 or four electrode connections are possible). It measures and controls the voltage difference between the working electrode as well as a reference electrode that is a constant current. It is able to measure the flow of current between the electrode that is working and the counter electrode (that completes the cell circuit). As a galvanostat device controls the cell’s current not the voltage of the cell.

The electrode used to work could be a metallic surface on which a reaction takes place or – for corrosion measurements – a sample of the degraded material. In the case of testing batteries the potentiostat must be connected directly to the electrodes of the battery.

Electrochemical Impedance Spectroscopy (EIS) tests enable users to calculate resistance to charge transfer, double layer capacitance and ohmic resistance.

What are the advantages of using a potentiostat / galvanostat or EIS?

A potentiostat is crucial for the study of the electrochemical mechanisms that cause reactions, e.g. chemical redox reactions. Another purpose is to test the performance of batteries. Potentiostats can also serve to test for electrochemically active compounds (e.g. poisons, drugsand microbes in solution.

Electrochemical Impedance Spectroscopy (EIS) can be used for a variety of purposes. It can be utilized to study corrosion e.g. in reinforced concrete, but also in double-layer studies, batteries, photovoltaic, and solid-state electrochemistry systems.

Our potentiostat / galvanostat / EIS systems

Crucial to the function of a galvanostat/potentiostat and applications like electrochemical impedance spectroscopy is the software. All of our BioLogic instruments are controlled with the multi-faceted EC-Lab(r) software, to provide a range of measurement options, including various modular techniques with wait and loop options to construct a complex experimental chainThe software can also be used to control several potentiostats from one interface view.

A range of high-quality indicators will allow users to confirm their EIS experiments, with regard to non-stationarity, linearity, or noise.

Furthermore, as opposed to the majority of other systems, it is possible to ‘Modify on the fly’ i.e. modify the parameters during an experiment in the event that results are not as expected.

Examples of the uses of potentiostats or galvanostats/EIS

Metallic surfaces are prone to become corrosive while in contact with a corrosive liquid (mostly in the presence of acidic solutions). Through electrochemical techniques, you can examine the behavior of the metal submerged in an corrosive solutionGalvanostats and Potentiostats are used to investigate the behavior and behavior of these metalsMethods such as, e.g., Electrochemical Impedance Spectrum (EIS), Linear Polarization Resistance and Tafel Plot experiments are used to study the behavior of these metals.

Solar cells are in abundance these daysSolar energy is crucial to local, regional and national energy production. To improve the efficiency the energy source, a lot of research is carried outThe characterization of photovoltaic solar cells can be achieved through polarization or Electrochemical Impedance Spectroscopy methods, which allow the user to measure the effectiveness of the cell and create a model. The contribution of the electrochemistry to fields of energy fields is at present a hot issue.

Understanding the kinetics and the thermodynamics of a chemical reaction that occurs within an electrode the primary function of essential electrochemistryGalvanostat EIS are fundamental instruments in this field. In this particular application, DC steady-state methods have been employed, such as Chronoamperometry, cyclic Voltammetry the chronocoulometry method, chronopotentiometry voltage, square wave voltage and other current-potential strategies.

Stephen Young

Follow us

Don't be shy, get in touch. We love meeting interesting people and making new friends.