Electrochemical Behavior of Ni(II)-Salen at the Mercury Electrode

The complex Ni(II)-salen has been studied using cyclic and square-wave cathodic stripping voltammetry at the static mercury drop electrode in an aqueous media of phosphate and Hepes buffers (at pH 7.0). The resulting voltammograms consist of a totally irreversible one-electron transfer attributable...

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Main Authors:	Pércio Augusto Mardini Farias, Margarida Bethlem Rodrigues Bastos
Format:	Article
Language:	English
Published:	Hindawi Limited 2013-01-01
Series:	International Journal of Electrochemistry
Online Access:	http://dx.doi.org/10.1155/2013/257926

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record_format	Article
spelling	doaj-e48309996e094c5c8c8e9acfac600f942020-11-24T22:02:38ZengHindawi LimitedInternational Journal of Electrochemistry2090-35292090-35372013-01-01201310.1155/2013/257926257926Electrochemical Behavior of Ni(II)-Salen at the Mercury ElectrodePércio Augusto Mardini Farias0Margarida Bethlem Rodrigues Bastos1Department of Chemistry, Pontifícia Universidade Católica, Rua Marques de São Vicente 225, 22453-900 Rio de Janeiro, RJ, BrazilDepartment of Chemistry, Pontifícia Universidade Católica, Rua Marques de São Vicente 225, 22453-900 Rio de Janeiro, RJ, BrazilThe complex Ni(II)-salen has been studied using cyclic and square-wave cathodic stripping voltammetry at the static mercury drop electrode in an aqueous media of phosphate and Hepes buffers (at pH 7.0). The resulting voltammograms consist of a totally irreversible one-electron transfer attributable to the coupling of Ni(II) salen/Ni(I) salen via an EC mechanism. The mean value for the transfer coefficient α in both supporting electrolytes was calculated as 0.35 ± 0.05. The amount of reactant adsorbed after 60 s of accumulation at −700 mV was calculated to be 2.8 × 10−8 mol·cm−2. The detection limit for nickel determination was found to be 3.4 × 10−9 mol L−1.http://dx.doi.org/10.1155/2013/257926
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Pércio Augusto Mardini Farias Margarida Bethlem Rodrigues Bastos
spellingShingle	Pércio Augusto Mardini Farias Margarida Bethlem Rodrigues Bastos Electrochemical Behavior of Ni(II)-Salen at the Mercury Electrode International Journal of Electrochemistry
author_facet	Pércio Augusto Mardini Farias Margarida Bethlem Rodrigues Bastos
author_sort	Pércio Augusto Mardini Farias
title	Electrochemical Behavior of Ni(II)-Salen at the Mercury Electrode
title_short	Electrochemical Behavior of Ni(II)-Salen at the Mercury Electrode
title_full	Electrochemical Behavior of Ni(II)-Salen at the Mercury Electrode
title_fullStr	Electrochemical Behavior of Ni(II)-Salen at the Mercury Electrode
title_full_unstemmed	Electrochemical Behavior of Ni(II)-Salen at the Mercury Electrode
title_sort	electrochemical behavior of ni(ii)-salen at the mercury electrode
publisher	Hindawi Limited
series	International Journal of Electrochemistry
issn	2090-3529 2090-3537
publishDate	2013-01-01
description	The complex Ni(II)-salen has been studied using cyclic and square-wave cathodic stripping voltammetry at the static mercury drop electrode in an aqueous media of phosphate and Hepes buffers (at pH 7.0). The resulting voltammograms consist of a totally irreversible one-electron transfer attributable to the coupling of Ni(II) salen/Ni(I) salen via an EC mechanism. The mean value for the transfer coefficient α in both supporting electrolytes was calculated as 0.35 ± 0.05. The amount of reactant adsorbed after 60 s of accumulation at −700 mV was calculated to be 2.8 × 10−8 mol·cm−2. The detection limit for nickel determination was found to be 3.4 × 10−9 mol L−1.
url	http://dx.doi.org/10.1155/2013/257926
work_keys_str_mv	AT percioaugustomardinifarias electrochemicalbehaviorofniiisalenatthemercuryelectrode AT margaridabethlemrodriguesbastos electrochemicalbehaviorofniiisalenatthemercuryelectrode
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Electrochemical Behavior of Ni(II)-Salen at the Mercury Electrode

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