Bacterial Cellulose Nanofiber-Supported Polyaniline Nanocomposites with Flake-Shaped Morphology as Supercapacitor Electrodes

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• 作者：Huanhuan Wang ; Enwei Zhu ; Jiazhi Yang ; Peipei Zhou ; Dongping Sun ; Weihua Tang
• 刊名：The Journal of Physical Chemistry C
• 出版年：2012
• 出版时间：June 21, 2012
• 年：2012
• 卷：116
• 期：24
• 页码：13013-13019
• 全文大小：557K
• 年卷期：v.116,no.24(June 21, 2012)
• ISSN：1932-7455

文摘

Bacterial cellulose (BC) nanofiber-supported polyaniline (PANI) nanocomposites have been synthesized via in situ polymerization of aniline onto BC nanofibers scalfold. Optimized preparation conditions were employed to achieve higher conductivity. The resultant BC/PANI nanocomposites were fully characterized in terms of structure, morphology, and thermal stability. The flake-like morphology of BC/PANI nanocomposites was observed using a field-emission gun scanning electron microscope. By manipulating the ordered flake-type nanostructure, BC/PANI nanocomposites achieved outstanding electrical conductivity as high as 5.1 S/cm. The as-prepared BC/PANI nanocomposites demonstrated a mass-specific capacitance of 273 F/g at 0.2 A.g^鈥? current density in supercapacitor application, the highest value reported so far for polymer-supported PANI composites.