Compressed porous graphene particles for use as supercapacitor electrodes with excellent volumetric performance

Huan Li; Ying Tao; Xiaoyu Zheng; Zhengjie Li; Donghai Liu; Zhao Xu; Chong Luo; Jiayan Luo; Feiyu Kang; Quan Hong Yang

doi:10.1039/c5nr06113j

Compressed porous graphene particles for use as supercapacitor electrodes with excellent volumetric performance

Huan Li, Ying Tao, Xiaoyu Zheng, Zhengjie Li, Donghai Liu, Zhao Xu, Chong Luo, Jiayan Luo^*, Feiyu Kang, Quan Hong Yang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

101 Citations (Scopus)

Abstract

This work presents a new class of porous graphene particles with a three-dimensional microscale network and an ultrahigh specific surface area (2590 m² g^-1), which is obtained by the KOH activation of a compact graphene hydrogel. As supercapacitor electrodes, such porous graphene particles show high compressibility and little capacitance loss when subjected to a compressive force up to 40 MPa, yielding an excellent volumetric performance with an ionic liquid electrolyte. Such carbon materials show great promise for applications needing high volumetric energy.

Original language	English
Pages (from-to)	18459-18463
Number of pages	5
Journal	Nanoscale
Volume	7
Issue number	44
DOIs	https://doi.org/10.1039/c5nr06113j
Publication status	Published - 28 Nov 2015
Externally published	Yes

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abstract = "This work presents a new class of porous graphene particles with a three-dimensional microscale network and an ultrahigh specific surface area (2590 m2 g-1), which is obtained by the KOH activation of a compact graphene hydrogel. As supercapacitor electrodes, such porous graphene particles show high compressibility and little capacitance loss when subjected to a compressive force up to 40 MPa, yielding an excellent volumetric performance with an ionic liquid electrolyte. Such carbon materials show great promise for applications needing high volumetric energy.",

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AU - Li, Huan

AU - Tao, Ying

AU - Zheng, Xiaoyu

AU - Li, Zhengjie

AU - Liu, Donghai

AU - Xu, Zhao

AU - Luo, Chong

AU - Luo, Jiayan

AU - Kang, Feiyu

AU - Yang, Quan Hong

PY - 2015/11/28

Y1 - 2015/11/28

N2 - This work presents a new class of porous graphene particles with a three-dimensional microscale network and an ultrahigh specific surface area (2590 m2 g-1), which is obtained by the KOH activation of a compact graphene hydrogel. As supercapacitor electrodes, such porous graphene particles show high compressibility and little capacitance loss when subjected to a compressive force up to 40 MPa, yielding an excellent volumetric performance with an ionic liquid electrolyte. Such carbon materials show great promise for applications needing high volumetric energy.

AB - This work presents a new class of porous graphene particles with a three-dimensional microscale network and an ultrahigh specific surface area (2590 m2 g-1), which is obtained by the KOH activation of a compact graphene hydrogel. As supercapacitor electrodes, such porous graphene particles show high compressibility and little capacitance loss when subjected to a compressive force up to 40 MPa, yielding an excellent volumetric performance with an ionic liquid electrolyte. Such carbon materials show great promise for applications needing high volumetric energy.

UR - https://www.scopus.com/pages/publications/84946854834

U2 - 10.1039/c5nr06113j

DO - 10.1039/c5nr06113j

M3 - Article

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SN - 2040-3364

VL - 7

SP - 18459

EP - 18463

JO - Nanoscale

JF - Nanoscale

IS - 44

ER -

Compressed porous graphene particles for use as supercapacitor electrodes with excellent volumetric performance

Abstract

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