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Issue 70, 2015
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Cobalt hydroxide [Co(OH)2] loaded carbon fiber flexible electrode for high performance supercapacitor

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Abstract

Cobalt hydroxide nanoflakes are uniformly loaded on flexible carbon fiber (CF) paper, and provide good electrical connectivity to the current collector for use as supercapacitors. The unique porous nanostructure offers low ion diffusion and charge transfer resistance in the electrode. The effect of loading mass on electrochemical properties is investigated. The electrode with a mass loading of 2.5 mg cm−2 shows the maximum specific capacitance of 386.5 F g−1 at a current density of 1 mA cm−2. Also the same electrode provides a good rate capability with energy and power densities of 133.5 W h kg−1 and 1769 W kg−1, respectively even at a higher current density of 10 mA cm−2. The electrode reveals a cyclic stability of 92% over 2000 cycles. This kind of flexible, lightweight electrode could be effectively utilized for flexible supercapacitor fabrication, especially for wearable electronics.

Graphical abstract: Cobalt hydroxide [Co(OH)2] loaded carbon fiber flexible electrode for high performance supercapacitor

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Publication details

The article was received on 15 Jun 2015, accepted on 23 Jun 2015 and first published on 24 Jun 2015


Article type: Paper
DOI: 10.1039/C5RA11366K
Author version available: Download Author version (PDF)
Citation: RSC Adv., 2015,5, 56942-56948
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    Cobalt hydroxide [Co(OH)2] loaded carbon fiber flexible electrode for high performance supercapacitor

    A. D. Jagadale, G. Guan, X. Du, X. Hao, X. Li and A. Abudula, RSC Adv., 2015, 5, 56942
    DOI: 10.1039/C5RA11366K

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