Construction of hybrid nanocomposites containing Pt nanoparticles and poly(3-methylthiophene) nanorods at a glassy carbon electrode: Characterization, electrochemistry, and electrocatalysis |
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Authors: | Yuan Zhou Feng Li Qiufang Lu Lun Wang |
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Affiliation: | a College of Science and Materials Science, Anhui Normal University, 1# Beijing East Rd., Wuhu 241000, China b Department of Chemistry, Kansas State University, 111 Willard Hall, Manhattan, KS 66506, USA |
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Abstract: | Hybrid nanocomposites containing Pt nanoparticles (nano-Pt) and poly(3-methylthiophene) (P3MT) nanorods at glassy carbon surfaces have been successfully prepared by use of an in situ cyclic voltammetry (CV) method. Field emission scanning electron microscope (FE-SEM), electrochemical impedance spectroscopy (EIS) and cyclic voltagrams were used to characterize the properties of these nanocomposites. SEM images showed that nano-Pt were located on the surface of P3MT nanorods and that they formed a three-dimensional (3D) porous nanostructure. EIS and CV results demonstrated that these hybrid nanocomposites had good conductivities, and could accelerate the electron-transfer rates of redox ions. From the results of electrochemical oxidation of methanol and nitrite, we observed that this nanocomposite-modified electrode exhibited excellent electrocatalytic activity, which might be useful in biosensors and/or fuel cells. |
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Keywords: | Pt nanoparticles Poly(3-methylthiophene) nanorods Methanol Nitrite Electrocatalysis |
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