Electrochemical behaviour of copper in N,N-dimethylformamide + 0.5 M potassium perchlorate solution

Autor:	V. Vojinovic, V. Komnenic, M. Pjescic, Slavko Mentus
Jazyk:	angličtina
Rok vydání:	2000
Předmět:	Potassium perchlorate Chemistry rotating disc electrode chemistry.chemical_element General Chemistry electrode kinetics Electrochemistry n n-dimethylformamide Copper lcsh:Chemistry chemistry.chemical_compound N-dimethylformamide lcsh:QD1-999 copper N dimethylformamide passivation Nuclear chemistry
Zdroj:	Journal of the Serbian Chemical Society, Vol 65, Iss 9, Pp 671-680 (2000)
ISSN:	1820-7421 0352-5139
Popis:	The electrochemical deposition and dissolution of copper in 0.0025 M CuSO4 + N,N-dimethylformamide + 0.5 M KClO4 solution was examined by the rotating disc and potentiodynamic methods. Both platinum and copper were used as working electrodes. A wide polarization range -1 to +2 V vs. SCE, and several temperatures between 25 and 55?C were encompased. The Cu/electrolyte interface was found to be permanently out of equilibrium, as a consequence of the development of a passivating layer. In accordance with the classic theory of a copper electrode in acidified aqueous solutions, the cathodic and anodic Tafel lines of metallic copper define a unique value of the exchange current density, however, their slopes do not correspond to the classic theory.
Databáze:	OpenAIRE
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