Electrospun Palladium Nanoparticle-Loaded Carbon Nanofibers and Their Electrocatalytic Activities towards Hydrogen Peroxide and NADH
作者： Jianshe Huang , Dawei Wang , Haoqing Hou , Tianyan You
关键词: Dielectric spectroscopy 、 Cyclic voltammetry 、 Inorganic chemistry 、 Carbon nanofiber 、 Nanocomposite 、 Carbon paste electrode 、 Chemical engineering 、 Materials science 、 Platinum nanoparticles 、 Scanning electron microscope 、 Palladium
摘要: Palladium nanoparticle-loaded carbon nanofibers (Pd/CNFs) were synthesized by the combination of electrospinning and thermal treatment processes. Scanning electron microscopy (SEM) transmission (TEM) images show that spherical Pd nanoparticles (NPs) are well-dispersed on surfaces CNFs or embedded in CNFs. X-ray diffraction (XRD) pattern indicates cubic phase was formed during reduction carbonization processes, presence NPs promoted graphitization This nanocomposite material exhibited high electric conductivity accelerated transfer, as verified electrochemical impedance spectroscopy (EIS) cyclic voltammetry (CV). The Pd/CNF-modified paste electrode (Pd/CNF-CPE) demonstrated direct mediatorless responses to H2O2 NADH at low potentials. analytical performances Pd/CNF-CPEs towards oxidation evaluated. sensitivity, wider linear range, good reproducibility, minimal surface fouling make this Pd/CNF-CPE a promising candidate for amperometric sensor.
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