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|Type:||Artigo de periódico|
|Title:||Polyaniline Nanofibers-graphene Oxide Nanoplatelets Composite Thin Film Electrodes For Electrochemical Capacitors|
Pla Cid C.C.
|Abstract:||Composite thin films of polyaniline (PANI) nanofibers and graphene oxide (GO) nanoplatelets are synthesized through a simple electrodeposition process for electrochemical capacitors. The morphology and structure of the materials are investigated by field emission scanning electron microscopy, transmission electron microscopy, current sensing atomic force microscopy, X-ray photoelectron spectroscopy, Fourier transforms infrared spectroscopy, X-ray diffraction, and ultraviolet-visible spectroscopy. In the process of electrodeposition, the electrostatic interactions between the oxygen-functionalized graphene and aniline monomers at an electrolyte interface assisted the co-deposition of PANI nanofibers and GO nanoplatelets. These thin films have an excellent effect on the electrochemical properties with an electrochemical capacitance of 662 F g-1 at a low current density of 0.025 mA cm-2 with simultaneous high energy density (64.5 W h kg -1) and high power density (1159 W kg-1). The excellent electrochemical performance of the films is attributed to the unique structure of the material, showing synergy between PANI nanofibers and GO nanoplatelets. This journal is © the Partner Organisations 2014.|
|Editor:||Royal Society of Chemistry|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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