Electrochemical impedance spectroscopy

Researchers and engineers working in electrochemistry and biochemistry are probably familiar with the concept of electrochemical impedance spectroscopy. For those who have not yet heard of this term, here follows a little explanation. Electrochemical impedance spectroscopy is a technique that helps characterize and measure the behavior of electric current within a given electrochemical system. This is useful for several different purposes related to electrochemical processes, among which are:

  • Monitoring;
  • Performing quality control;
  • Analyzing;
  • Experimenting;
  • Researching.

Electrochemical impedance spectroscopy has become a widely used technique that helps develop our knowledge on and expertise in electrochemistry.

The invention of electrochemical impedance spectroscopy

Technically, the basis for this hugely popular technique lies in the 19th century developments in electrochemistry. Scientists had been working on this aspect of chemistry for a couple of centuries when the Industrial Revolution gave it a real boost. The actual technique of electrochemical impedance spectroscopy has been around since approximately the 1960s, when a research group in Paris worked on the question of corrosion and how it worked. Thanks to a close cooperation with the manufacturing industry, the research group managed to launch already very accurate tools for performing electrochemical impedance spectroscopy. In the years following its invention, it was mainly applied to photoelectrochemistry. However, only during the last twenty years did it surface as the most popular technique for defining and measuring electrochemical reactions.

Great results

Today, this technique is enormously popular and its quality of measurement constantly increases. Now, for example it is possible to order a custom designed chip online, which will perfectly suit the customers’ purpose. The collaboration with the manufacturing industry is still going strong, resulting in the possibility for customers to order fully functional measuring installations for the purpose of electrochemical impedance spectroscopy, including analyzing software and flow control systems.

Electrochemical impedance spectroscopy