Investigating products of titanium dissolution in the presence of fluoride ions with dual dynamic voltammetry

Abstract

<p class="PaperAbstract"><span lang="EN-US">Products of titanium dissolution in the active state are investigated in fluoride contain­ing 1 M H₂SO₄ solutions. The novel method of dual dynamic voltammetry, applied to Ti disk/Pt ring rotating ring–disk electrodes, is utilized for the simultaneous detection of different dissolution products. Potential regions where certain products (primarily, Ti^III and H₂) are formed are identified by a 3D electrochemical map constructed based on the ring–disk electrode measurements. Besides dissolution in the form of Ti^III species and hydrogen evolution, the formation and prompt oxidation of Ti^II can also be presumed under the applied conditions.</span></p>