Stability and Placement of Ag/AgCl Quasi-Reference Counter Electrodes in Confined Electrochemical Cells Bentley C Research One of the main reasons for the emergence of nanoelectrochemistry was the combination of electrochemistry with nanotechnology as a result of advances in production and characterization methods. Nanoelectrochemistry is performed at smaller length scales as well as progressively more limited sizes. In this case, it is necessary to conduct new experiments, unlike macroscopic electrochemistry. This, in turn, opens the way to new considerations. Chemical reagents and electrode materials: The perchloric acid and potassium βπ¦ππππβπππππ ππππ πππππ π€ππ‘β πππππππ§ππ π€ππ‘ππ ππ π’π ππ. π΄π/π΄ππΆπ ππ πΆπΈ annealed silver wire (diameter=0.25mm) was first etched with P1200 sandpaper, then prepared by sonication and then anodized in saturated KCl solution. Electrochemical Experiments: Ag/AgCl QRCE was filled with electrolyte solution (0.1 M HClO4) and placed in a single-barrel nanopipette probe (tip diameter, dt=500 nm) in a QRCE stability test set. Ag|AgCl quasi-reference counter electrode stability: As mentioned in the Experimental section, stability of the QRCE potential is of great importance when performing long experimental measurements. π π 0 πΈππ πΆπΈ = πΈπ΄ππΆπΏ − ∗ πΏππππ − πΉ Where T-is absolute temperature R-is gas constant F-Faraday’s constant Ag/AgCl stability under operational conditions needed to be verified. At this time, SICM so that they can simulate the confined electrochemical cell environment. A similar nanopipette (dt=500 nm) used in nanopore experiments was also selected. Figure 1a.
