Anodic Dissolution of 304 Stainless Steel Using Atomic Emission Spectroelectrochemistry

摘要: In this work a new spectroelectrochemical method based on an inductively coupled plasma atomic emission spectrometry has been developed and used to measure the elementary dissolution rates of Fe, Cr, Ni, Mn, Mo, Cu simultaneously during linear scan voltammetry 304 stainless steel in active region. Simultaneous was observed for all elements with exception copper, which appeared solution at potential approximately 100 mV more positive. The Tafel slopes Mn partial were measured around corrosion found be identical within experimental error, between 59 68 mV/decade. anodic copper acidic chloride sulfate solutions establish quantitative relationship concentration transients rate. residence time distribution electrochemical flow cell determined using galvanostatic pulses or dissolution. could approximated high degree accuracy both long short times by log-normal distribution. effect shape elemental current investigated numerical simulation.