Electrochemistry Applications
Paints and Coatings
Our paints and coatings customers have told us that ease of use and reduced acquisition time are the most important features for their research.
Gamry Advantages
The Reference 620 is best for very small capacitance measurements. Since barrier films tend to model as very small capacitors when EIS studies are done, this is generally the best choice.
With some films a quartz crystal microbalance (QCM) is of use. Gamry’s eQCM 15M allows simultaneous electrochemical (when combined with a potentiostat) and mass measurement, and is designed to accurately measure hard and soft materials.
Our software contains many different techniques for studying coatings but researchers examining coatings will be focused almost exclusively on electrochemical impedance spectroscopy.
Gamry Expertise
Gamry published a series of three papers on the “Evaluation of Organic Coatings with Electrochemical Impedance Spectroscopy” in JCT CoatingsTech in 2004 and 2005.
Along with those articles, we have several applications notes available for download dealing with EIS and coatings.
Recommended
Recommended setups
The Reference 620 is by far the favorite among coatings researchers. It's low-current capability make it the ideal instrument for measuring low-capacitance, high-impedance coatings. The PTC1 paint test cell is ideally suited due to its low cost and ease of use.
While any of Gamry’s systems are capable of running the experiments used for electrochemical testing on films, the Reference 620 is best for very small capacitance measurements. Since barrier films tend to model as very small capacitors when EIS studies are done, this is generally the best choice.
With some films a quartz crystal microbalance (QCM) is of use. Gamry’s eQCM 15M allows simultaneous electrochemical (when combined with a potentiostat) and mass measurement, and is designed to accurately measure hard and soft materials.