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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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | International Journal of Electrochemistry |
| Online Access: | http://dx.doi.org/10.1155/2013/257926 |
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| _version_ | 1832555887559966720 |
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| author | Pércio Augusto Mardini Farias Margarida Bethlem Rodrigues Bastos |
| author_facet | Pércio Augusto Mardini Farias Margarida Bethlem Rodrigues Bastos |
| author_sort | Pércio Augusto Mardini Farias |
| collection | DOAJ |
| 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. |
| format | Article |
| id | doaj-art-e48309996e094c5c8c8e9acfac600f94 |
| institution | Kabale University |
| issn | 2090-3529 2090-3537 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Electrochemistry |
| spelling | doaj-art-e48309996e094c5c8c8e9acfac600f942025-02-03T05:47:00ZengWileyInternational 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 |
| spellingShingle | Pércio Augusto Mardini Farias Margarida Bethlem Rodrigues Bastos Electrochemical Behavior of Ni(II)-Salen at the Mercury Electrode International Journal of Electrochemistry |
| title | 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_short | Electrochemical Behavior of Ni(II)-Salen at the Mercury Electrode |
| title_sort | electrochemical behavior of ni ii salen at the mercury electrode |
| url | http://dx.doi.org/10.1155/2013/257926 |
| work_keys_str_mv | AT percioaugustomardinifarias electrochemicalbehaviorofniiisalenatthemercuryelectrode AT margaridabethlemrodriguesbastos electrochemicalbehaviorofniiisalenatthemercuryelectrode |