Electrochemistry of scratched silver electrodes in chloride solutions

✍ Scribed by G.T. Burstein; R.D.K. Misra

• Publisher: Elsevier Science
• Year: 1983
• Tongue: English
• Weight: 651 KB
• Volume: 28
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(83)85135-4

✦ Synopsis

Current transients have been measured for silver electrodes held at a constant potential in solution and rapidly scratched in the presence of different chloride concentrations and pH. Two different types of oxldlsed monolayer are observed in different potential ranges, both below the Ag/AgCI reversible potential. The formation ofa second monolayer of AgCl occurs only at higher potentials than the first, which itself occurs also to monolayer coverage. The first monolayer is probably a mixture of AgOH and AgCL The steady state coverage of the second monolayer is a function of the chloride concentration.

The anodic behaviour of scratched silver electrodes is independent of pH in chloride solutions.