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Fabrication of Arbitrary-Shaped and Nitrogen-Doped Graphene Aerogel for Highly Compressible All Solid-State Supercapacitors

Abstract

Herein, we report a new templated method for fabricating arbitrary-shaped compressible nitrogen-doped graphene aerogel (GA). The as-prepared GA remains stable under a maximum compressive strain of 90% or after 50 compress/release cycles at a strain of 80%. The compressible nitrogen-doped GA is used as electrode to fabricate the all solid-state graphene aerogel supercapacitor (GASC). The as-assembled GASC shows a specific capacitance of 150 F g-1 at a current density of 0.3 A g-1 and long cycle life with 85.1% capacitance retention after 10,000 cycles at 1 A g-1. In addition, the compressible GASC displays stable electrochemical performance under different compressive strain (0%, 25%, 50% and 75%) or after 100 compress/release cycles under compressive strain of 50%. The present work highlights the first example to fabricate arbitrary-shaped compressible GA. Furthermore, the as-obtained GASC overcomes the limitation of previous work which required the assistance of other materials to maintain their mechanical properties. This simple templated method for the fabrication of compressible and robust GA electrodes could envision enormous potential for high performance compressible energy storage devices.

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Publication details

The article was received on 06 Jun 2017, accepted on 04 Aug 2017 and first published on 04 Aug 2017


Article type: Paper
DOI: 10.1039/C7TA04917J
Citation: J. Mater. Chem. A, 2017, Accepted Manuscript
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    Fabrication of Arbitrary-Shaped and Nitrogen-Doped Graphene Aerogel for Highly Compressible All Solid-State Supercapacitors

    D. Jiang, C. Li, W. Yang, J. Zhang and J. Liu, J. Mater. Chem. A, 2017, Accepted Manuscript , DOI: 10.1039/C7TA04917J

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