Electrochemical behaviors of benzoic acid at polyaniline/CuGeO3 nanowire modified glassy carbon electrode |
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| Affiliation: | 1. Key Lab of Materials Science and Processing of Anhui Province, School of Materials Science and Engineering, Anhui University of Technology, Ma’anshan, Anhui 243002, PR China;2. State Key Laboratory of Bioelectronics, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, PR China;1. Quantum Photonics Research Lab (QPRL), Faculty of Electrical and Computer Engineering, University of Tabriz, Tabriz, Iran;2. Photonics and Nano-Crystals Research Lab (PNRL), Faculty of Electrical and Computer Engineering, University of Tabriz, Tabriz, Iran;1. College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road,Shanghai 201620, PR China;2. Department of Chemistry, University of Science and Technology of China, Hefei 230026, PR China;1. Department of Electrical and Computer Engineering, LOOP (Laboratoire d’observation et d’optimisation des procédés), Université Laval, Pavillon Pouliot, Québec City G1V0A6, Canada;2. Department of Mining, Metallurgical and Materials Engineering, LOOP (Laboratoire d’observation et d’optimisation des procédés), Université Laval, Pavillon Pouliot, Québec City G1V0A6, Canada;3. Department of Metallurgical Engineering, University of Santiago, Chile |
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| Abstract: | 20 wt.% polyaniline/CuGeO3 nanowires have been used as glassy carbon electrode (GCE) modified materials for electrochemical determination of benzoic acid (BA) in neutral solution. The intensities of the anodic cyclic voltammogram (CV) peaks increase linearly with the increase of BA concentration and scan rate. The linear range is 0.001–2 mM and detection limit is 0.96 μM and 0.47 μM for cvp1 and cvp2, respectively at a signal-to-noise ratio of 3. 20 wt.% polyaniline/CuGeO3 nanowire modified GCE exhibits good stability and reproducibility. Polyaniline plays an important role in the electrochemical responses of BA at polyaniline/CuGeO3 nanowire modified GCE. The detection limit decreases to 0.64 μM and 0.28 μM for cvp1 and cvp2, respectively with the polyaniline content increasing to 40 wt.%. Polyaniline/CuGeO3 nanowire modified GCE exhibit better electrochemical performance than traditional methods. |
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| Keywords: | Benzoic acid Electrochemical behaviors Glassy carbon electrode |
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