Nanostructured conductive polypyrrole hydrogels as high-performance, flexible supercapacitor electrodes

被引:625
作者
Shi, Ye [1 ]
Pan, Lijia [2 ,3 ]
Liu, Borui [1 ]
Wang, Yaqun [3 ]
Cui, Yi [4 ]
Bao, Zhenan [2 ]
Yu, Guihua [1 ]
机构
[1] Univ Texas Austin, Dept Mech Engn, Mat Sci & Engn Program, Austin, TX 78712 USA
[2] Stanford Univ, Dept Chem Engn, Stanford, CA 94305 USA
[3] Nanjing Univ, Natl Lab Microstruct, Sch Elect Sci & Engn, Nanjing 210093, Jiangsu, Peoples R China
[4] Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA
关键词
ELECTROCHEMICAL SUPERCAPACITOR; NANOWIRE ARRAYS; BATTERIES; POLYMERS; CAPACITORS; OXIDE;
D O I
10.1039/c4ta00484a
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Electrochemically active conducting polymers are an important class of materials for applications in energy storage devices such as batteries and supercapacitors, owing to their advantageous features of unique three-dimensional (3D) porous microstructure, high capacitive energy density, scalable synthesis and light weight. Here, we synthesized a nanostructured conductive polypyrrole (PPy) hydrogel via an interfacial polymerization method. The simple synthesis chemistry offers the conductive hydrogel tunable nanostructures and electrochemical performance, as well as scalable processability. Moreover, the unique 3D porous nanostructure constructed by interconnected polymer nanospheres endows PPy hydrogels with good mechanical properties and high performance acting as supercapacitor electrodes with a specific capacitance of similar to 380 F g(-1), excellent rate capability, and a real capacitance as high as similar to 6.4 F cm(-2) at a mass loading of 20 mg cm(-2).
引用
收藏
页码:6086 / 6091
页数:6
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