期刊
ELECTROCHIMICA ACTA
卷 54, 期 3, 页码 1134-1140出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2008.08.071
关键词
Poly(N-acetylaniline); MWNTs; Nanocomposite; Formaldehyde; Fuel cell
资金
- National Nature Science Foundation of China [20525519, 90606014, 20890020]
- Shanghai Leading Academic Discipline [13109, 08XD14009]
In this work, a novel 3D nanocomposite is presented, which is consisted of poly(N-acetylaniline) (PAANI)/multi-walled carbon nanotubes (MWNTs) nanorods (in which the inner layer was comprised of MWNTs and the outer layer was PAANI, forming a core-shell structure) and the decorated Pt nanoparticles. Electrochemical techniques (such as electrochemical impedance spectroscopy (EIS)), X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM), X-ray diffraction (XRD) and transmission electron microscopy (TEM) are used to characterize the nanocomposite. The resulting Pt/PAANI/MWNTs nanocomposite can be served as a higher efficient catalyst for the electrochemical oxidation of formaldehyde at 0.41 V with the catalytic current of 0.73 mA, which was accompanied with about 45 mV potential negative shifts and two-fold increase in peak current comparison to the Pt/PAANI. These results reveal that the Pt/PAANI/MWNTs nanocomposite film is quite promising in the fuel cell applications. (C) 2008 Elsevier Ltd. All rights reserved.
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