Respirometric in Situ Methods for Real-Time Monitoring of Corrosion Rates: Part III. Deconvolution of Electrochemical Polarization Curves

A highly sensitive respirometric method is presented that allows real-time monitoring of reaction rates involving H 2 and O during electrochemical polarization. The measurement approach based on simultaneous the changes in total pressure partial inside a closed chamber. Hence, it possible to quantify resulting from reactions such as HER, ORR OER function applied potential. As result, deconvolution net electric current into cathodic anodic polarization can be obtained. It was demonstrated reveal superfluous Al well Mg AZ31. Thus, true metal oxidation rate could determined rates. Furthermore, HER electrodeposition Zn measured. Through Ni stainless steel at high potentials, evolution distinguished electrode processes.