Open AccessInfluence of Pt, Ag and Au electrodes on Cr (III) electrofiltration with current density
Author(s) -
Croswel Eduardo Aguilar Quiroz,
Rosa Elizabeth Nomberto Torres,
Segundo Juan Diaz Camacho,
Eymi Gianella Laiza Escobar
Publication year - 2021
Publication title -
south florida journal of development
Language(s) - English
Resource type - Journals
ISSN - 2675-5459
DOI - 10.46932/sfjdv2n5-005
Subject(s) - electromigration , anode , cathode , electrode , current density , materials science , ion , current (fluid) , chromium , cathodic protection , analytical chemistry (journal) , chemistry , metallurgy , composite material , electrical engineering , physics , organic chemistry , quantum mechanics , chromatography , engineering
The metals Pt, Au and Ag as electrodes were studied at electrofiltration Cr3+ ion. The system of three half-cells were used. The Cr3+ migration from the central half-cell to the others half-cells where are electrodes was evaluated. Current density and the configurations of metals such as anode - cathode, is determined. The electrodes activity varies with current density as well as cathode or anode. The Cr3+ electromigration to cathodic half-cell increase when anode activity to generate H3O+ ions was higher than cathode (OH- ions). Instead, the migration of Cr3+ to the anode is by electroosmosis. The presence of Au as an electrode generates greater electromigration of the chromium ion to the cathode.