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>
Highlights
Due to its extensive application, the electrochemical stability of titanium has been the subject of investigations for more than fifty years [1,2,3,4,5,6,7,8,9,10,11,12,13,14]
In this paper we demonstrate the applicability of a novel experimental method, dual dynamic voltammetry [23,24,25], for the detection of different dissolution products of titanium
The described technique is applicable to the vast majority of generator-collector systems, in what follows, we will concentrate on rotating ring–disk electrodes (RRDEs). doi:10.5599/jese
Summary
Due to its extensive application, the electrochemical stability of titanium has been the subject of investigations for more than fifty years [1,2,3,4,5,6,7,8,9,10,11,12,13,14]. The pure metal itself, and some of its alloys are widely applied as materials of dental implants and braces. Assessing the possible corrosion products of Ti alloys that contain materials with toxic forms is of special importance. In this paper we demonstrate the applicability of a novel experimental method, dual dynamic voltammetry [23,24,25], for the detection of different dissolution products of titanium. The described technique is applicable to the vast majority of generator-collector systems, in what follows, we will concentrate on rotating ring–disk electrodes (RRDEs)
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