Electromagnetic Functionalized Cage-like Polyaniline Composite Nanostructures

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• 作者：Hangjun Ding ; Xian-Ming Liu ; Meixiang Wan ; Shao-Yun Fu
• 刊名：Journal of Physical Chemistry B
• 出版年：2008
• 出版时间：August 7, 2008
• 年：2008
• 卷：112
• 期：31
• 页码：9289-9294
• 全文大小：266K
• 年卷期：v.112,no.31(August 7, 2008)
• ISSN：1520-5207

文摘

Novel cage-like and electromagnetic functional polyaniline (PANI)/CoFe₂O₄ composite nanostructures, in which the self-assembled PANI nanofibers (∼15 nm in diameter) entwined around the octahedral CoFe₂O₄ magnet acting as the nucleation site or template, were successfully prepared by FeCl₃ as either oxidant and dopant via a self-assembly process. The coordination effect of the magnet as a nucleation site or template and the magnetic interaction between the PANI nanofibers and CoFe₂O₄ as a driving force results in such cage-like nanostructures. The cage-like composite nanostructures not only have high conductivity (σ_max ∼ 5.2 S/cm), but also show a typical ferromagnetic behavior.