|
ИСТИНА |
Войти в систему Регистрация |
ИСТИНА ЦЭМИ РАН |
||
Aqueous electrochemistry of binuclear copper complex with Robson-type ligand: dissolved versus surface-immobilized reactantстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Roznyatovskaya N.V., Vassiliev S.Y., Yusipovich A.I., Tsirlina G.A., Roznyatovskii V.V.
- Журнал: Journal of Solid State Electrochemistry
- Том: 9
- Номер: 8
- Год издания: 2005
- Издательство: Springer Verlag
- Местоположение издательства: Germany
- Первая страница: 581
- Последняя страница: 589
- DOI: 10.1007/s10008-004-0604-z
- Аннотация: The electrochemical behaviour of binuclear copper complex with Robson-type ligand [Cu2L]Cl-2 in aqueous medium is studied by cyclic voltammetry at highly oriented pyrolytic graphite, glassy carbon and gold electrodes. The overall reduction from solution of this reactant is found to be irreversible resulting in metallic copper formation. It is also complicated by chemical transformations of Cu(I) containing species. When attached to carbon support, [Cu2L]Cl-2 is redox active in aqueous medium in the same potential range. The reduction is more reversible if reactant is immobilized at HOPG surface, and is in general agreement with reversible copper demetallation scheme. For dissolved reactant, the contribution of surface-attached species is screened by predominating voltammetric response of irreversible reduction. These conclusions are supported by data on the reduction of free protonated ligand and its hydrolysis products. Ex situ STM is applied to characterize electrode surfaces modified by [Cu2L]Cl-2. Adsorbate monolayer of periodic structure is observed at highly oriented pyrolytic graphite (HOPG). Adsorption is more disordered at GC and less strong at polycrystalline gold support.
- Добавил в систему: Юсипович Александр Иванович