期刊
ELECTROCHIMICA ACTA
卷 199, 期 -, 页码 234-241出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2016.03.115
关键词
polyaniline nanowire arrays; conducting polymer; carbon nanotubes; supercapacitor; nitrite sensor
资金
- National Natural Science Foundation of China [21275087, 21422504]
- Natural Science Foundation of Shandong Province of China [ZR2012BM008, JQ201406]
- Taishan Scholar Program of Shandong Province, China
Conducting polymer polyaniline (PANI) nanowire arrays were electrochemically in situ synthesized on the surface of glassy carbon electrodes, which were modified with self-assembled multi-walled carbon nanotubes (CNTs) networks. The ordered PANI nanowire arrays and CNTs networks were integrated to create 3D nanostructured PANI/CNTs composites. Owing to their unique microstructure and conductivity, the PANI/CNTs nanocomposite exhibited excellent electrical properties such as remarkable supercapacitor performance and catalytic activity toward nitrite electrochemical reduction. It was found that the PANI/CNTs nanocomposite was capable of delivering high specific capacitance and showed excellent cycling stability. Moreover, it could be utilized as an electrochemical sensor for the detection of nitrite, with an outstanding sensitivity, low detection limit (6.1 mM, a signal to noise ratio of 3) and a fast response time of less than 5 s. (C) 2016 Elsevier Ltd. All rights reserved.
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