The Mauzeroll Lab shows how to gain a deeper understanding of corrosion processes of thermal spray coatings by combining macro electrochemical techniques with localized measurements by scanning electrochemical microscopy (SECM) and scanning micropipette contact method (SMCM).
HEKA’s ElProScan fully supports SMCM, a technique where a miniaturized electrochemical cell is formed with a droplet at the tip of a nano- or micropipette. The wetted sample surface functions as working electrode and a Ag/AgCl wire inside the pipette functions as quasi reference/counter electrode. This method provides a unique way for localized measurements, which helped Janine and her group to probe corrosion processes very locally and record Tafel plots at the micron-scale!
HEKA’s Ultra Potentiostats (PG 611 and 618 USB) are the ideal instruments for measuring low currents due to their low noise performance and high current resolution! This allows such challenging localized corrosion studies within these tiny electrochemical cells formed by the droplet.
Have a look at the paper: https://www.nature.com/articles/s41529-019-0087-0