Quasireversible Process of Dopamine on Copper-Nickel Hydroxide Composite/Nitrogen Doped Graphene/Nafion Modified GCE and Its Electrochemical Application
Cu-Ni(OH)2/N-GR/Nafion/GCE has been prepared by electrodeposition and activation with NaOH. The proposed modified GCE was studied by electrochemical methods. It is found that dopamine shows favorable redox cyclic voltammetric response on the proposed modified GCE with peak separation of 25 mV and la...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Journal of Analytical Methods in Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2014/724538 |
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| author | Chuan-yin Liu Zhong-yong Liu Rong Peng Zhi-cheng Zhong |
| author_facet | Chuan-yin Liu Zhong-yong Liu Rong Peng Zhi-cheng Zhong |
| author_sort | Chuan-yin Liu |
| collection | DOAJ |
| description | Cu-Ni(OH)2/N-GR/Nafion/GCE has been prepared by electrodeposition and activation with NaOH. The proposed modified GCE was studied by electrochemical methods. It is found that dopamine shows favorable redox cyclic voltammetric response on the proposed modified GCE with peak separation of 25 mV and large current compared with on single-component modified GCE. The kinetic of electrode process has also been investigated with rate constant of 6.618 × 10−3 cm/s, which can be deduced to be a quasireversible or near-reversible process. The proposed method has been used for DA detection with linear range of 1.0 × 10−7 mol/L to 4.6 × 10−5 mol/L, and the detection limit is 3.3 × 10−8 mol/L. The proposed method has favorable stability and reproducibility and has also been used to determine DA in simulated samples and DA injections with favorable recoveries of 98.4% to 102.6%. |
| format | Article |
| id | doaj-art-f8f3ab79977740538fbaef0dc475d605 |
| institution | Kabale University |
| issn | 2090-8865 2090-8873 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Analytical Methods in Chemistry |
| spelling | doaj-art-f8f3ab79977740538fbaef0dc475d6052025-02-03T06:06:57ZengWileyJournal of Analytical Methods in Chemistry2090-88652090-88732014-01-01201410.1155/2014/724538724538Quasireversible Process of Dopamine on Copper-Nickel Hydroxide Composite/Nitrogen Doped Graphene/Nafion Modified GCE and Its Electrochemical ApplicationChuan-yin Liu0Zhong-yong Liu1Rong Peng2Zhi-cheng Zhong3School of Chemical Engineering and Food Science, Hubei University of Arts and Science, Xiangyang 441053, ChinaSchool of Chemical Engineering and Food Science, Hubei University of Arts and Science, Xiangyang 441053, ChinaSchool of Chemical Engineering and Food Science, Hubei University of Arts and Science, Xiangyang 441053, ChinaKey Laboratory of Low Dimensional Optoelectronic Materials and Devices of Hubei Province, Xiangyang 441053, ChinaCu-Ni(OH)2/N-GR/Nafion/GCE has been prepared by electrodeposition and activation with NaOH. The proposed modified GCE was studied by electrochemical methods. It is found that dopamine shows favorable redox cyclic voltammetric response on the proposed modified GCE with peak separation of 25 mV and large current compared with on single-component modified GCE. The kinetic of electrode process has also been investigated with rate constant of 6.618 × 10−3 cm/s, which can be deduced to be a quasireversible or near-reversible process. The proposed method has been used for DA detection with linear range of 1.0 × 10−7 mol/L to 4.6 × 10−5 mol/L, and the detection limit is 3.3 × 10−8 mol/L. The proposed method has favorable stability and reproducibility and has also been used to determine DA in simulated samples and DA injections with favorable recoveries of 98.4% to 102.6%.http://dx.doi.org/10.1155/2014/724538 |
| spellingShingle | Chuan-yin Liu Zhong-yong Liu Rong Peng Zhi-cheng Zhong Quasireversible Process of Dopamine on Copper-Nickel Hydroxide Composite/Nitrogen Doped Graphene/Nafion Modified GCE and Its Electrochemical Application Journal of Analytical Methods in Chemistry |
| title | Quasireversible Process of Dopamine on Copper-Nickel Hydroxide Composite/Nitrogen Doped Graphene/Nafion Modified GCE and Its Electrochemical Application |
| title_full | Quasireversible Process of Dopamine on Copper-Nickel Hydroxide Composite/Nitrogen Doped Graphene/Nafion Modified GCE and Its Electrochemical Application |
| title_fullStr | Quasireversible Process of Dopamine on Copper-Nickel Hydroxide Composite/Nitrogen Doped Graphene/Nafion Modified GCE and Its Electrochemical Application |
| title_full_unstemmed | Quasireversible Process of Dopamine on Copper-Nickel Hydroxide Composite/Nitrogen Doped Graphene/Nafion Modified GCE and Its Electrochemical Application |
| title_short | Quasireversible Process of Dopamine on Copper-Nickel Hydroxide Composite/Nitrogen Doped Graphene/Nafion Modified GCE and Its Electrochemical Application |
| title_sort | quasireversible process of dopamine on copper nickel hydroxide composite nitrogen doped graphene nafion modified gce and its electrochemical application |
| url | http://dx.doi.org/10.1155/2014/724538 |
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