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Voltammetric sensor for caffeine based on a glassy carbon electrode modified with Nafion and graphene oxide |
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| Authors: | Zhao Fangyuan Wang Fei Zhao Weining Zhou Jing Liu Yang Zou Lina Ye Baoxian |
| Institution: | 1. College of Chemistry and Life Science, College of Geography and Environmental Science, Zhejiang Normal University, Jinhua, Zhejiang, 321004, China 2. Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Environmental Science, Henan Normal University, Xinxiang, Henan, 453007, China |
| Abstract: | A facile, one-step and template-free method has been developed for the electrodeposition of well-dispersed platinum nanoparticles (Pt-NPs) on a glassy carbon electrode. The effects of various inorganic anions and overpotential on the morphologies and dimensions of the final products were investigated. The resulting Pt-NPs show high electrocatalytic activity towards methanol oxidation and are less easily poisoned by carbon monoxide. In this study, we have developed a simple, environmentally benign, controllable, and template-free method for the electrodeposition of monodispersed Pt NPs on a glassy carbon electrode. The resulting Pt NPs display high catalytic activity towards methanol oxidation, and are less easily poisoned by carbon monoxide. |
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