Journal
JOURNAL OF APPLIED ELECTROCHEMISTRY
Volume 39, Issue 10, Pages 1889-1895Publisher
SPRINGER
DOI: 10.1007/s10800-009-9896-0
Keywords
Electrodeposition; Platinum nanoparticles; Polyaniline; Multi-walled carbon nanotubes; Formaldehyde sensing
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Funding
- Natural Science Foundation of Anhui Province of China [070415210]
- Science and Technology Program Foundation of Hefei City [20071032]
- Doctor Foundation of Hefei University of Technology (2005)
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Platinum nanoparticles on polyaniline-coat multi-walled carbon nanotubes were fabricated by electrochemical method at paraffin-impregnated graphite electrode (Pt/PAN/MWCNTs). The material was characterized by various methods including field emission scanning electron microscope (FE-SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and electrochemical techniques. The electrode has been effectively applied toward formaldehyde (HCHO) sensing. A good linear response curves from 1 x 10(-9) to 1 x 10(-3) M can be obtained with a lower detection limit of 4.6 x 10(-11) M (S/N 3). The successful preparation of nanocomposites opens a new path to fabricate the promising sensor for HCHO.
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