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Issue 22, 2013
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Facile preparation of a cobalt hybrid/graphene nanocomposite by in situ chemical reduction: high lithium storage capacity and highly efficient removal of Congo red

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Abstract

We report a facile approach to prepare a cobalt hybrid/graphene (Co/G) nanocomposite via a general one-pot hydrothermal synthesis. NaBH4 is used as the reducing agent. Co/G nanocomposite possesses narrow size-distribution and good dispersion, providing tremendous potential for energy and environment applications. As a proof of concept, we demonstrate the use of the Co/G nanocomposite in a lithium-ion battery and an adsorbent for Congo red (CR), respectively. More importantly, more than 97% of capacity retention (605 mAh g−1) is retained after 50 cycles, indicative of high charge/discharge reversibility of the Co/G nanocomposite electrode. Furthermore the CR removal ability of the Co/G nanocomposite can reach 934.9 mg g−1.

Graphical abstract: Facile preparation of a cobalt hybrid/graphene nanocomposite by in situ chemical reduction: high lithium storage capacity and highly efficient removal of Congo red

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Publication details

The article was received on 01 Feb 2013, accepted on 05 Mar 2013 and first published on 06 Mar 2013


Article type: Paper
DOI: 10.1039/C3DT50333J
Dalton Trans., 2013,42, 8070-8077

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    Facile preparation of a cobalt hybrid/graphene nanocomposite by in situ chemical reduction: high lithium storage capacity and highly efficient removal of Congo red

    L. Wang, J. Li, C. Mao, L. Zhang, L. Zhao and Q. Jiang, Dalton Trans., 2013, 42, 8070
    DOI: 10.1039/C3DT50333J

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