title: Supercapacitors based on flexible graphene/polyaniline nanofiber composite films.
abstract: 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.
authors.affiliation: Department of Chemistry and Laboratory of Bio-organic Phosphorus, Tsinghua University, Beijing 100084, People's Republic of China.
authors.forename: Qiong
authors.initials: Q
authors.lastname: Wu
authors.forename: Yuxi
authors.initials: Y
authors.lastname: Xu
authors.forename: Zhiyi
authors.initials: Z
authors.lastname: Yao
authors.forename: Anran
authors.initials: A
authors.lastname: Liu
authors.forename: Gaoquan
authors.initials: G
authors.lastname: Shi
mesh_terms: D000814:Aniline Compounds / Q000737:chemistry*; D002244:Carbon / Q000737:chemistry*; D025802:Electric Capacitance; D004563:Electrochemistry; D055595:Mechanical Phenomena; D008855:Microscopy, Electron, Scanning; D053761:Nanocomposites / Q000737:chemistry*; D057139:Nanofibers / Q000737:chemistry*; D014867:Water / Q000737:chemistry
chemical_list: D000814:Aniline Compounds; C416807:polyaniline; D014867:Water; D002244:Carbon