Abstract
β-SiC nanowires (β-SiCNWs) were synthesized by using a simple method and employed for fabricating β-SiCNW-nC hybrid catalyst support. Next, palladium (Pd) nanoparticles were deposited at the surface of the support by using chemical reduction method. The synthesized Pd|β-SiCNW-nC mesoporous electrocatalyst was characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), cyclic voltammetry (CV) and N2 adsorption-desorption experiment. The results indicated that Pd nanoparticles are uniformly deposited at the surface of hybrid support with an average size of 50 nm. The synthesized catalyst was uniformly screen printed on glass electrode by using a novel, simple and cheap method (Pd|β-SiCNW-nC|SPE). The constructed SPE was used for hydrazine detection in real samples. The Pd|β-SiCNW-nC|SPE showed good stability and high electrocatalytic activity for hydrazine oxidation. The limit of detection (S/N = 3) and sensitivity were found to be 0.012 μM and 0.725 μA/μM, respectively.
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