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|標題:||Synthesis and characterization of water-soluble polypyrrole/multi-walled carbon nanotube composites|
|出版社:||Society of Chemical Industry|
|摘要:||Water-soluble polypyrrole (PPy)/multi-walled carbon nanotube (MWCNT) composites were prepared by mixing chemically modified MWCNTs carrying carboxylic groups (c-MWCNTs) and sulfonated PPy (SPPy) aqueous colloids in solution. Fourier transform infrared spectroscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction, field-emission scanning electron microscopy and high-resolution transmission electron microscopy were used to characterize the structure and morphology of the resulting composites. Raman and X-ray photoelectron spectra demonstrate the presence of electrostatic interactions between the radical species of the SPPy and the carboxylic acid species of the c-MWCNTs. The addition of c-MWCNTs into SPPy efficiently enhances its thermal stability and electrical conductivity. Owing to the doping effect and one-dimensional linear structure of the c-MWCNTs, the conductivity of SPPy/c-MWCNT composites at room temperature is increased by two orders of magnitude by the introduction of 5 wt% c-MWCNTs into the SPPy matrix. Copyright 2010 Society of Chemical Industry|
|Appears in Collections:||材料科學與工程學系|
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