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Nickel-coated carbon fiber ͑NiCCF͒ material is of interest to a number of important industry sectors. The present paper reports a complex study of the corrosion performance of 12K ͑12,000 single filaments͒ NiCCF composite tows. The corrosion behavior of this material was examined in dilute H 2 SO 4 , Cl − -based neutral and NaOH solutions, with respect to its potential application in electrochemical cathodic protection and bipolar plate ͑fuel cell͒ technologies. The composites were produced by electro-͑or electroless NiP͒ deposition of an ultrathin ͑ca. 0.3-0.5 m͒ Ni coating onto Hexcel 12K carbon fiber tow. A commercially available, electrodeposited 12K NiCCF product ͑Toho-Tenax fiber͒ was used as a reference material.

This paper reports on the process of industrial-type wastewater purification carried-out through continuous anodic dissolution of aluminum alloy sacrificial anode for artificially aerated Cu-Al alloy galvanic (macro-corrosion) cells and synthetically prepared wastewater solutions. Electrochemical experiments were performed by means of a laboratory size electrolyzer unit, where the electrocoagulation process along with surface-induced electrooxidation phenomena were examined for wastewater containing Acid Mixture and Disperse Red 167 dyes. Final reduction of the dyes concentrations came to 32 and 99% for Acid Mixture and Disperse Red 167, correspondingly. The above was visualized through the employment of electrochemical (cyclic voltammetry and a.c. impedance spectroscopy techniques) and instrumental spectroscopy analyses.

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