Preliminary research on the use of SVET in non-aqueous media

abstract

An investigation is presented on the use of the scanning vibrating electrode technique (SVET) in nonaqueous media, namely pure ethanol and ethanol saturated with NaCl. The SVET was able to measure the ionic currents flowing in the liquid phase between anodes and cathodes in electrochemical systems such as platinum disk electrodes connected to a battery, a zinc-iron galvanic couple, painted galvanised steel with artificial defects and alumina coated cast aluminium alloy. The results show the applicability of the technique in non-aqueous highly resistive medium. (C) 2015 Elsevier Ltd. All rights reserved.

keywords

SCANNING VIBRATING ELECTRODE; PITTING CORROSION; ALUMINUM-ALLOY; GALVANIC CORROSION; ELECTRICAL-FIELDS; STAINLESS-STEEL; CARBON-STEEL; PROBE; ZINC; INHIBITION

subject category

Electrochemistry

authors

Bastos, AC; Quevedo, MC; Ferreira, MGS

our authors

acknowledgements

M.C. Quevedo thanks CONACYT (Mexico) for the post doc scholarship approach no. 203529 and A.C. Bastos thanks a post-doc grant with the reference BPD/UI50/2739/2013. Funds from Fundacao para a Ciencia e a Tecnologia (Portugal) project PTDC/CTM-MAT/1515/2012 are also acknowledged.

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