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- 저자 : da Motta Sampaio, Daniel (검색결과 1 건)
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Babu, Rajendran Suresh,de Barros, Ana Lucia Ferreira,de Almeida Maier, Mariana,da Motta Sampaio, Daniel,Balamurugan, Jayaraman,Lee, Joong Hee Elsevier 2018 Composites Part B, Engineering Vol.143 No.-
<P><B>Abstract</B></P> <P>To accomplish high-performance flexible energy storage devices, a new class of flexible electrodes with prosperous constructions bearing exceptional electrical conductivity, exclusive porosity, and outstanding mechanical stability is extremely needed. Here, we have successfully fabricated a highly flexible electrode with nanocomposite of polyaniline/manganese hexacyanoferrate PANI/MnHCF nanocomposite (PANI/MnHCF) on highly conductive carbon fiber (FCF). The nanocomposite exhibits an ultra-high specific capacitance of 730 F g<SUP>−1</SUP> at a current density of 1 A g<SUP>−1</SUP> with exceptional rate capability (350 F g<SUP>−1</SUP> capacitance retention at a current density of 20 A g<SUP>−1</SUP> <SUB>),</SUB> and outstanding cycling performance (capacitance retention of ∼85% after 1000 cycles). The PANI/MnHCF/FCF electrode shows better electrochemical performance due to their exclusive properties such as excellent electrical conductivity, unique porous network and outstanding mechanical flexibility. Furthermore, the higher surface area of PANI/MnHCF nanocomposite facilitates the transport of electrons and electrolyte ions during rapid charge/discharge process. This present work offers a simple, scalable and cost-effective method for fabrication of other PANI/MnHCF nanocomposite based electrode, which is applicable for providing energy in practical flexible portable devices.</P> <P><B>Highlights</B></P> <P> <UL> <LI> PANI/MnHCF nanoparticles decorated on FCF by simple one-step co-polymerization method. </LI> <LI> The fabricated flexible and binder-free nanocomposite enhances the electrochemical performance. </LI> <LI> The nanocomposite electrode exhibits excellent rate capability and outstanding cycling performance. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
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