A New Amperometric Hydrazine Sensor Based on Prussian Blue/Single‐walled Carbon Nanotube Nanocomposites |
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| Authors: | Cong Wang Li Zhang Zhihua Guo Jigui Xu Hongyan Wang Hongwei Shi Kefeng Zhai Xin Zhuo |
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| Affiliation: | 1. Anhui Key Laboratory of Spin Electron and Nanomaterials (Cultivating Base), Suzhou University, Suzhou 234000, P.?R. China, Tel./Fax: +86‐0557‐2871067;2. Department of Chemistry and Life Science, Suzhou University, Suzhou 234000, P.?R. China |
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| Abstract: | A slow reaction process has been successfully used to synthesize Prussian blue/single‐walled carbon nanotubes (PB/SWNTs) nanocomposites. Electrochemical and surface characterization by cyclic voltammetry (CV), scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV‐vis absorption spectroscopy, Fourier transform infrared (FTIR) spectroscopy and X‐ray diffraction (XRD) confirmed the presence of PB nanocrystallites on SWNTs. PB/SWNTs modified glassy carbon electrode (GCE) exhibits efficient electron transfer ability and high electrochemical response towards hydrazine. The fabricated hydrazine sensor showed a wide linear range of 2.0×10?6–6.0×10?3 M with a response time less than 4 s and a detection limit of 0.5 μM. PB/SWNTs modified electrochemical sensors are promising candidates for cost‐effective in the hydrazine assays. |
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| Keywords: | Prussian blue Single‐walled carbon nanotubes Electrocatalysis Hydrazine Amperometric detection Nanotubes |
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