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.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Fan T,Zhao C,Xiao Z,Guo F,Cai K,Lin H,Liu Y,Meng H,Min Y,Epstein AJ

doi

10.1038/srep29534

subject

Has Abstract

pub_date

2016-07-08 00:00:00

pages

29534

issn

2045-2322

pii

srep29534

journal_volume

6

pub_type

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