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RESEARCH PRODUCT

Passivity Breakdown of Titanium in LiBr Solutions

E. Blasco-tamaritR.m. Fernández-domeneD.m. García-garcíaJ. García Antón

subject

TitaniumLiBrRenewable Energy Sustainability and the Environmentmedia_common.quotation_subjectPhilosophyMetallurgyPassivitychemistry.chemical_elementTitaniCondensed Matter PhysicsINGENIERIA QUIMICASurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsElectroquímicachemistryGratitudePassivity breakdownMaterials ChemistryElectrochemistryHumanitiesmedia_commonTitanium

description

The passive behavior of titanium and its susceptibility to undergo localized attack in different LiBr solutions at 25 degrees C have been investigated using different electrochemical techniques: potentiodynamic polarization curves, potentiostatic passivation tests, EIS measurements and Mott-Schottky analysis. In low and moderately concentrated LiBr solutions, the breakdown potential E-b decreased with increasing bromide concentrations, while in highly concentrated LiBr solutions, E-b increased with increasing LiBr concentration. In the most concentrated LiBr solution (11.42M) Ti did not undergo passivity breakdown even at 9 V-Ag/AgCl. This observation can be explained by a a decrease in the activity of water in highly concentrated LiBr solutions. (C) 2013 The Electrochemical Society.

10.1149/2.035401jeshttps://hdl.handle.net/10550/76835