title: Fabricating of high-performance functional graphene fibers for micro-capacitive energy storage.
abstract: Although graphene is a typical two dimensional materials, it has converted to multi-dimensional materials with many unique properties. As an example, the one dimensional graphene fiber is fabricated by utilizing ionic liquid as coagulation and functional diamines as cross-linkers to connect graphene oxide layers. The fibers show excellent mechanical properties and superior electrical performance. The tensile strength of the resultant fibers reaches ~729 MPa after a super high temperature thermal annealing treatment at 2800 °C. Additionally, quasi-solid-state flexible micro-capacitors are fabricated with promising result on energy storage. The device show a specific volumetric capacity as high as ~225 F/cm(3) (measured at 103.5 mA cm(-3) in a three-electrode cell), as well as a long cycle life of 2000 times. The initial results indicate that these fibers will be a good candidate to replace energy storage devices for miniaturized portable electronic applications.
authors.affiliation: School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen 518055, China.
authors.forename: Tianju
authors.initials: T
authors.lastname: Fan
authors.affiliation: Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing 210046, China.
authors.forename: Chunyan
authors.initials: C
authors.lastname: Zhao
authors.affiliation: Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing 210046, China.
authors.forename: Zhuangqing
authors.initials: Z
authors.lastname: Xiao
authors.affiliation: School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen 518055, China.
authors.forename: Fangjun
authors.initials: F
authors.lastname: Guo
authors.affiliation: Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing 210046, China.
authors.forename: Kaiyu
authors.initials: K
authors.lastname: Cai
authors.affiliation: School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen 518055, China.
authors.forename: Hai
authors.initials: H
authors.lastname: Lin
authors.affiliation: School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen 518055, China.
authors.forename: Yidong
authors.initials: Y
authors.lastname: Liu
authors.affiliation: School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen 518055, China.
authors.forename: Hong
authors.initials: H
authors.lastname: Meng
authors.affiliation: Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing 210046, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Min
authors.affiliation: Department of Physics and Chemistry &Biochemistry, Ohio State University, Columbus, OH 43210, USA.
authors.forename: Arthur J
authors.initials: AJ
authors.lastname: Epstein