Cyclic voltammetric study of copper in alkaline solution

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The electrochemical reactions of a copper electrode in Na2S solutions were studied using cyclic voltammetry. Purification of working electrodes is determined by X-ray fluorescence. Also a surface examination and morphological studies were applied using scanning electron microscopy and X-ray diffractometer. There are three anodic peaks and, the cathodic branch also contains three peaks. These peaks correspond to the reduction of copper oxide and copper sulfide formed on the anode branch. These peaks may be corresponding successively to the formation of Cu2S, CuS, Cu2O respectively. On the other hand are compounds formed by oxidation of the sulfide of metals using ethylenediaminetetraacetic acid.

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Copper, sodium sulfide, oxidation, ethylenediaminetetraacetic acid, cyclic voltammetry, copper oxide, copper sulfide

Короткий адрес: https://sciup.org/148317769

IDR: 148317769   |   DOI: 10.18101/2306-2363-2017-4-59-65

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