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A New Amperometric Hydrazine Sensor Based on Prussian Blue/Single‐walled Carbon Nanotube Nanocomposites
Author(s) -
Wang Cong,
Zhang Li,
Guo Zhihua,
Xu Jigui,
Wang Hongyan,
Shi Hongwei,
Zhai Kefeng,
Zhuo Xin
Publication year - 2010
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201000058
Subject(s) - prussian blue , materials science , carbon nanotube , cyclic voltammetry , fourier transform infrared spectroscopy , nanocomposite , amperometry , hydrazine (antidepressant) , transmission electron microscopy , scanning electron microscope , ferrocyanide , electrochemical gas sensor , chemical engineering , nuclear chemistry , detection limit , electrochemistry , analytical chemistry (journal) , electrode , nanotechnology , chemistry , organic chemistry , composite material , chromatography , engineering
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.