期刊
MICROCHIMICA ACTA
卷 184, 期 2, 页码 483-489出版社
SPRINGER WIEN
DOI: 10.1007/s00604-016-2025-y
关键词
Electroanalysis; Chemical sensor; Electrochemical deposition; Cyclic voltammetry; Conducting polymer; Nanocomposite
资金
- National Natural Science Foundation of China [21275087, 21422504]
- Natural Science Foundation of Shandong Province of China [JQ201406]
- Taishan Scholar Program of Shandong Province of China
An electrochemical sensor for H2O2 was developed based on electrochemically deposited Prussian blue (PB) nanoparticles doped poly(3,4-ethylenedioxythiophene) (PEDOT). The PEDOT/PB composite was composed of PEDOT wrapped PB nanoparticles, where the conducting polymer PEDOT not only protected the PB particles to warrant high stability, but also connected them to enhance the electron transfer. Owing to the excellent conductivity of PEDOT and unique electrocatalytic activity of PB, the PEDOT/PB modified electrode exhibited good catalytic activity toward the electrochemical reduction of H2O2, and was used for the detection of H2O2 in concentrations ranging from 0.5 to 839 mu M, with a detection limit of 0.16 mu M. Moreover, the sensor also demonstrated excellent reproducibility, selectivity and long-term stability, showing great promise for the fabrication of electrochemical sensors and H2O2 related biosensors.
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