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|標題:||Synthesis, characterization, and properties of monodispersed magnetite coated multi-walled carbon nanotube/polypyrrole nanocomposites synthesized by In-Situ chemical oxidative polymerization||作者:||Wu, T.M.
|關鍵字:||conductivity;iron oxide;morphology;multi-walled carbon nanotubes;nanocomposite;polypyrrole;nanotube composites;electrical-properties;oxide nanocrystals;load-transfer;polypyrrole;behaviors||Project:||Journal of Polymer Science Part B-Polymer Physics||期刊/報告no：:||Journal of Polymer Science Part B-Polymer Physics, Volume 46, Issue 7, Page(s) 727-733.||摘要:||
This study describes the preparation of a nanocomposites fabricated from monodispersed 4-nn iron oxide (Fe3O4) coated on the surface of carboxylic acid containing multi-walled carbon nanotube (c-MWCNT) and polypyrrole (PPy) by in situ chemical oxidative polymerization. High-resolution transmission electron microscopy images and X-ray diffraction (XRD) data indicate that the resulting Fe3O4 nanoparticles synthesized using the thermal decomposition are close to spherical dots with a particle size about 4 +/- 0.2 nn. The resulting nanoparticles were further mixed with c-MWCNT in an aqueous solution containing with anionic surfactant sodium bis(2-ethylhexyl) sulfosuccinate to form one-dimensional Fe3O4 coated c-MWCNT template for further preparation of nanocomposite. Structural and morphological analysis using field-emission scanning electron microscopy, high-resolution transmission electron microscopy, and XRD showed that the fabricated Fe3O4 coated c-MWCNT/PPy nanocomposites are one-dimensional core (Fe3O4 coated c-MWCNT)-shell (PPy) structures. The conductivities of these Fe3O4 coated c-MWCNT/PPy nanocomposites are about four times higher than those of pure PPy matrix.(C) 2008 Wiley Periodicals, Inc.
|Appears in Collections:||材料科學與工程學系|
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