How Much You Need To Expect You’ll Pay For A Good Potentiostat
Potentiostat / galvanostat / EIS
Potentiostats / galvanostats are designed for electrochemical measurement in various applications, including corrosion coatings, batteries, general electrochemistry and many more. Electrochemical Impedance Spectroscopy (EIS) is available as an option on every instrument. This technique is utilized for studying corrosion, batteries, photovoltaics, as well as in certain life science applications. Other options include a wide selection of voltage and current boosters.
We offer a range of Potentiostat by BioLogic Science Instruments. Our product line includes single galvanostats or potentiostats which can be made bipotentiostat-like – and multichannel potentiostats / galvanostats that have up to 16 channels , which can monitor the electrochemical effects of up to 16 simultaneously.
What is the process by which a potentiostat or galvanostat work?
The basic potentiostat utilizes three electrodes (2 or four electrode connections are feasible). It monitors and regulates the voltage difference between a working electrode and a reference electrode which has a constant potential. It analyzes the flow of electricity between the working electrode and the counter electrode (that completes the circuit of cells). In a galvanostat, the device controls the cell’s current not the voltage of the cell.
The electrode used to work could be a metal upon where a reaction is taking place or – for corrosion measurements it is a sample of the corrosion-prone material. For battery testing the potentiostat must be connected directly to the battery electrodes.
Electrochemical Impedance Spectroscopy (EIS) tests permit the user to identify the resistance of charge transfer double layer capacitance, ohmic resistance.
Why should you use a Potentiostat / galvanostat/EIS?
A potentiostat is vital for studying the electrochemical mechanisms that cause reactions, e.g. the study of redox chemistry. Another purpose is to test the performance of batteries. Potentiostats can also serve to identify electrochemically active substances (e.g. toxic substances, drugs) and microbes in solutions.
Electrochemical Impedance Spectroscopy (EIS) has many applications. It can be used to study corrosion e.g. in reinforced concrete however, it can also be used in batteries, double-layer studies photovoltaic and solid-state electrochemistry systems.
Our potentiostat / galvanostat / EIS systems
Essential to the operation of a galvanostat or potentiostat and applications like electrochemical spectroscopy is the software. All of our BioLogic instruments can be controlled using the flexible EC-Lab(r) software, to provide a variety of measurement modes, as well as various modes of control, such as loop and wait options to construct a complex experimental chain. It is also able to control multiple potentiostats through the same interface.
A broad range of quality indicators will allow users to prove the validity of their EIS experimentswith respect to non-stationarity (stationarity), linearity or noise.
Furthermore, as opposed to several other systems, one can modify at will’, i.e. alter the settings of a parameter during an experiment in the event that results aren’t what you expect.
Examples of the applications of potentiostats and galvanostats / EIS
Metal surfaces may be corroded when they are in contact with a corrosive liquid (mostly acidsic medium). With electrochemical techniques you can study the behavior of the material when it is submerged in a corrosive solution. Galvanostats and Potentiostats are used to characterize the characteristics of metals. Techniques like e.g. EIS (Electrochemical Impedance) (EIS), Linear Polarization Resistance and Tafel Plot experiments are used to study the behavior of these metals.
Photovoltaic cells are in abundance these days. Solar energy is crucial to the national, regional, and local energy production. To increase the efficiency of this type of energy supply the research is being conducted. The characterization of photovoltaic solar cells can be achieved through polarization or Electrochemical Impedance Spectroscopy methods, which enable the user to evaluate the efficiency of the cell as well as the model. The electrochemistry’s role in the energy fields is a topic of current interest.
Understanding the kinetics as well as the thermodynamics of a reaction occurring at an electrode serves as the primary goal of Electrochemistry fundamentals. Galvanostat EIS are crucial tools in this area. In this case, DC steady-state methods have been used , for instance: Chronoamperometry, cyclic Voltammetry the chronocoulometry method, chronopotentiometry voltage, square wave voltage and various other techniques for calculating current potency.
