Effect of the composition of water-acetone solvent and benzhydrazine structure on their efficiency during cadmium electrodeposition from perchlorate media

Autor:	M. A. Yakusheva, L. M. Skibina, V. V. Kuznetsov, R. R. Khalikov
Rok vydání:	2009
Předmět:	Chemistry Metal ions in aqueous solution Organic Chemistry Inorganic chemistry Metals and Alloys Solvation Substituent Surfaces Coatings and Films Ion Solvent Reaction rate Perchlorate chemistry.chemical_compound Adsorption Materials Chemistry
Zdroj:	Protection of Metals and Physical Chemistry of Surfaces. 45:570-575
ISSN:	2070-206X 2070-2051
DOI:	10.1134/s2070205109050128
Popis:	The feasibility of controlling the degree of retardation of a cathodic process by changing the ratio of the components in the liquid phase and nature of electron shifts in additive molecule (benzhydrazine) is discussed. The minimum electrode reaction rate is observed in a range of water structure stabilization under conditions of the predominant adsorption of organic molecules. The highest efficiency are achieved using an additive with an electron-donating substituent in the molecule. The highest rate of the electroreduction of Cd2+ and the lowest efficiency of the additives are registered in the region of the loosening of the structure of the mixed solvent, causing selective ion solvation to become possible, which results in an abrupt increase in the adsorption activity of ClO4− anions on the cathode and is the main reason for the ψ’ effect during the electroreduction of metal ions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0af0babb1b9e4af38258a329188cf1e3 https://doi.org/10.1134/s2070205109050128 Zobrazit plný text záznamu Plný text ve formátu PDF