Мақола

Supercapacitors Based on Flexible Graphene/Polyaniline Nanofiber Composite Films

Qiong WuDepartment of Chemistry and Laboratory of Bio-organic Phosphorus, Tsinghua University, Beijing 100084, People’s Republic of ChinaYuxi XuDepartment of Chemistry and Laboratory of Bio-organic Phosphorus, Tsinghua University, Beijing 100084, People’s Republic of ChinaZhiyi YaoDepartment of Chemistry and Laboratory of Bio-organic Phosphorus, Tsinghua University, Beijing 100084, People’s Republic of ChinaAnran LiuDepartment of Chemistry and Laboratory of Bio-organic Phosphorus, Tsinghua University, Beijing 100084, People’s Republic of ChinaGaoquan ShiDepartment of Chemistry and Laboratory of Bio-organic Phosphorus, Tsinghua University, Beijing 100084, People’s Republic of China

2010en

ABI

Аннотация

Composite films of chemically converted graphene (CCG) and polyaniline nanofibers (PANI-NFs) were prepared by vacuum filtration the mixed dispersions of both components. The composite film has a layered structure, and PANI-NFs are sandwiched between CCG layers. Furthermore, it is mechanically stable and has a high flexibility; thus, it can be bent into large angles or be shaped into various desired structures. The conductivity of the composite film containing 44% CCG (5.5 x 10(2) S m(-1)) is about 10 times that of a PANI-NF film. Supercapacitor devices based on this conductive flexible composite film showed large electrochemical capacitance (210 F g(-1)) at a discharge rate of 0.3 A g(-1). They also exhibited greatly improved electrochemical stability and rate performances.

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Идентификаторлар

DOI: 10.1021/nn1000035

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