Three-dimensional architectures of graphene oxide–polyaniline nanocomposites synthesized by the pulse reverse electrodeposition technique for supercapacitor applications

详细信息    查看全文

• 作者：Masoud Faraji
• 关键词：Supercapacitor ; Graphene oxide ; Polyaniline ; Pulse reverse electrodeposition ; TiO2 nanotubes
• 刊名：Ionics
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：23
• 期：2
• 页码：461-469
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Electrochemistry; Renewable and Green Energy; Optical and Electronic Materials; Condensed Matter Physics; Energy Storage;
• 出版者：Springer Berlin Heidelberg
• ISSN：1862-0760
• 卷排序：23

文摘

Binder-free graphene oxide (GO)-polyaniline (PANI) nanocomposites with three-dimensional structures and good capacitive characteristics were prepared by pulse reverse electrodeposition of PANI and GO onto the previously formed TiO₂ nanotubes (TiO₂NTs). In the composite, interconnected reduced graphene oxide sheets constitute a high-efficient conductive network to improve the capacitive behavior of PANI. Furthermore, the network structure of the nanocomposites facilitates fast diffusion of electrolytes, which can significantly improve the parameters effectively influencing the capacitive behavior such as electrical conductivity and specific capacitance. The electrochemical data demonstrated that the specific capacitance of these electrodes was around 132 mF cm−2 in 1.0 M H₂SO₄ electrolyte as measured at a constant current of 0.66 mA cm−2, whereas it was 34 and 77 mF cm−2 for the GO/TiO₂NT and PANI/TiO₂NT electrodes, respectively.