An ultrahigh thermal conductive graphene flexible paper

Nanoscale
Jiheng DingHaibin Yu

Abstract

Graphene nanosheets (GNSs) possess outstanding conductivity, good thermal and chemical stabilities and desirable mechanical strengths. However, the unfunctionalized GNSs are hydrophobic and insoluble in water, which limits their application in many technological areas. Herein, we report a design strategy to exfoliate few-layered aqueous dispersible graphene by a simple ball-milling technique. The modifier of sodium lignosulfonate (LS) enables to synthesize LS-decorated GNSs from natural graphite based on the strong π-π interaction, greatly improving GNSs dispersion in water. The resultant GNSs exhibit a high production yield (∼100%), high dispersion concentration and excellent film formation ability. The electrical and thermal conductivities of the as-prepared graphene paper were up to 2385 S cm-1 and 1324 W m-1 K-1, respectively, superior to those of most previously reported graphene materials. This graphene paper with the superb electrical and thermal conduction properties also exhibits excellent mechanical flexibility and structure intensity during bending, which has potential usages in electronic packaging and high power thermal management.

References

Feb 21, 2008·Nano Letters·Alexander A BalandinChun Ning Lau
Jul 26, 2008·Nature Nanotechnology·Dan LiGordon G Wallace
Jul 23, 2011·Nature Materials·Alexander A Balandin
Jan 5, 2012·Nano Letters·Khan M F Shahil, Alexander A Balandin
Feb 9, 2012·Chemical Communications : Chem Comm·Xianjue ChenColin L Raston
Sep 15, 2012·ACS Nano·Jeong Yun KimJeffrey C Grossman
Jan 5, 2013·Chemical Reviews·Mingsheng XuHongzheng Chen
Aug 12, 2014·Nano Letters·H MalekpourA A Balandin
Dec 18, 2014·Nature Communications·Deji AkinwandeJames Hone
Jan 29, 2016·Nature Communications·Ashivni Shekhawat, Robert O Ritchie
Dec 21, 2016·ACS Nano·Xianjue ChenRodney S Ruoff

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Methods Mentioned

BETA
atomic force microscopy
scanning electron microscopy
electron diffraction
AFM
electron

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