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 H<sub>2</sub>SO<sub>4</sub> 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<sup>III</sup> and H<sub>2</sub>) are formed are identified by a 3D electrochemical map constructed based on the ring–disk electrode measurements. Besides dissolution in the form of Ti<sup>III</sup> species and hydrogen evolution, the formation and prompt oxidation of Ti<sup>II</sup> can also be presumed under the applied conditions.</span></p>

Past and present of electrochemical science in Hungary

“…The potential of the two working electrodes can be controlled individually; e.g., voltammetry with different potential programs can be measured on them [71]. A characteristic example of its use is the study of metal dissolution kinetics [72].…”