Ionic liquid-assisted microwave reduction of graphite oxide for supercapacitors

Tae Young Kim; Hyun Chang Kang; Tran Thanh Tung; Jung Don Lee; Hyeongkeun Kim; Woo Seok Yang; Ho Gyu Yoon; Kwang S. Suh

doi:10.1039/c2ra21400h

Ionic liquid-assisted microwave reduction of graphite oxide for supercapacitors

Tae Young Kim
, Hyun Chang Kang
, Tran Thanh Tung
, Jung Don Lee
, Hyeongkeun Kim
, Woo Seok Yang
, Ho Gyu Yoon^*
, Kwang S. Suh

^*Corresponding author for this work

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

42 Citations (Scopus)

Abstract

We present a facile and scalable method for the rapid production of reduced graphene oxide (RG-O) by ionic liquid-assisted microwave chemistry. Microwave irradiation of graphite oxide (GO) in an ionic liquid (IL) enables the rapid reduction of GO within 15 s, producing RG-O containing the IL within their porous structures. The reduced graphene oxide prepared by IL-assisted microwave irradiation (mRG-O) electrodes exhibited a high specific capacitance of ∼135 F g^-1, which can be attributed to the open architecture of the mRG-O filled with IL moieties. A supercapacitor made with mRG-O in an IL electrolyte operated at a voltage of 3.5 V and showed a high energy density (∼58 W h kg^-1) and power density (∼246 kW kg^-1).

Original language	English
Pages (from-to)	8808-8812
Number of pages	5
Journal	RSC Advances
Volume	2
Issue number	23
DOIs	https://doi.org/10.1039/c2ra21400h
Publication status	Published - 2012

Bibliographical note

Publisher Copyright:
© The Royal Society of Chemistry 2012.

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering

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10.1039/c2ra21400h

Cite this

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title = "Ionic liquid-assisted microwave reduction of graphite oxide for supercapacitors",

abstract = "We present a facile and scalable method for the rapid production of reduced graphene oxide (RG-O) by ionic liquid-assisted microwave chemistry. Microwave irradiation of graphite oxide (GO) in an ionic liquid (IL) enables the rapid reduction of GO within 15 s, producing RG-O containing the IL within their porous structures. The reduced graphene oxide prepared by IL-assisted microwave irradiation (mRG-O) electrodes exhibited a high specific capacitance of ∼135 F g-1, which can be attributed to the open architecture of the mRG-O filled with IL moieties. A supercapacitor made with mRG-O in an IL electrolyte operated at a voltage of 3.5 V and showed a high energy density (∼58 W h kg-1) and power density (∼246 kW kg-1).",

author = "Kim, \{Tae Young\} and \{Chang Kang\}, Hyun and \{Thanh Tung\}, Tran and \{Don Lee\}, Jung and Hyeongkeun Kim and \{Seok Yang\}, Woo and \{Gyu Yoon\}, Ho and Suh, \{Kwang S.\}",

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year = "2012",

doi = "10.1039/c2ra21400h",

language = "English",

volume = "2",

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T1 - Ionic liquid-assisted microwave reduction of graphite oxide for supercapacitors

AU - Kim, Tae Young

AU - Chang Kang, Hyun

AU - Thanh Tung, Tran

AU - Don Lee, Jung

AU - Kim, Hyeongkeun

AU - Seok Yang, Woo

AU - Gyu Yoon, Ho

AU - Suh, Kwang S.

PY - 2012

Y1 - 2012

N2 - We present a facile and scalable method for the rapid production of reduced graphene oxide (RG-O) by ionic liquid-assisted microwave chemistry. Microwave irradiation of graphite oxide (GO) in an ionic liquid (IL) enables the rapid reduction of GO within 15 s, producing RG-O containing the IL within their porous structures. The reduced graphene oxide prepared by IL-assisted microwave irradiation (mRG-O) electrodes exhibited a high specific capacitance of ∼135 F g-1, which can be attributed to the open architecture of the mRG-O filled with IL moieties. A supercapacitor made with mRG-O in an IL electrolyte operated at a voltage of 3.5 V and showed a high energy density (∼58 W h kg-1) and power density (∼246 kW kg-1).

AB - We present a facile and scalable method for the rapid production of reduced graphene oxide (RG-O) by ionic liquid-assisted microwave chemistry. Microwave irradiation of graphite oxide (GO) in an ionic liquid (IL) enables the rapid reduction of GO within 15 s, producing RG-O containing the IL within their porous structures. The reduced graphene oxide prepared by IL-assisted microwave irradiation (mRG-O) electrodes exhibited a high specific capacitance of ∼135 F g-1, which can be attributed to the open architecture of the mRG-O filled with IL moieties. A supercapacitor made with mRG-O in an IL electrolyte operated at a voltage of 3.5 V and showed a high energy density (∼58 W h kg-1) and power density (∼246 kW kg-1).

UR - https://www.scopus.com/pages/publications/84881444404

U2 - 10.1039/c2ra21400h

DO - 10.1039/c2ra21400h

M3 - Article

AN - SCOPUS:84881444404

SN - 2046-2069

VL - 2

SP - 8808

EP - 8812

JO - RSC Advances

JF - RSC Advances

IS - 23

ER -

Ionic liquid-assisted microwave reduction of graphite oxide for supercapacitors

Abstract

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ASJC Scopus subject areas

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