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Issue 23, 2012
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Ionic liquid-assisted microwave reduction of graphite oxide for supercapacitors

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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).

Graphical abstract: Ionic liquid-assisted microwave reduction of graphite oxide for supercapacitors

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Publication details

The article was received on 09 Jul 2012, accepted on 09 Jul 2012 and first published on 16 Aug 2012


Article type: Paper
DOI: 10.1039/C2RA21400H
RSC Adv., 2012,2, 8808-8812

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    Ionic liquid-assisted microwave reduction of graphite oxide for supercapacitors

    T. Kim, H. Chang Kang, T. Thanh Tung, J. Don Lee, H. Kim, W. Seok Yang, H. Gyu Yoon and K. S. Suh, RSC Adv., 2012, 2, 8808
    DOI: 10.1039/C2RA21400H

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