All-Solid-State Flexible Supercapacitors Based on Highly Dispersed Polypyrrole Nanowire and Reduced Graphene Oxide Composites

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• 作者：Chenfei Yu ; Peipei Ma ; Xi Zhou ; Anqi Wang ; Tao Qian ; Shishan Wu ; Qiang Chen
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2014
• 出版时间：October 22, 2014
• 年：2014
• 卷：6
• 期：20
• 页码：17937-17943
• 全文大小：491K
• ISSN：1944-8252

文摘

Highly dispersed polypyrrole nanowires are decorated on reduced graphene oxide sheets using a facile in situ synthesis route. The prepared composites exhibit high dispersibility, large effective surface area, and high electric conductivity. All-solid-state flexible supercapacitors are assembled based on the prepared composites, which show excellent electrochemical performances with a specific capacitance of 434.7 F g^鈥? at a current density of 1 A g^鈥?. The as-fabricated supercapacitor also exhibits excellent cycling stability (88.1% capacitance retention after 5000 cycles) and exceptional mechanical flexibility. In addition, outstanding power and energy densities were obtained, demonstrating the significant potential of prepared material for flexible and portable energy storage devices.

Keywords:

energy storage; supercapacitors; flexible; polypyrrole nanowire; reduced graphene oxide; highly dispersed