Synthesis and characterization of cobalt hydroxide carbonate nanostructures

Lin, Xuehao, Li, Hui, Musharavati, Farayi, Zalnezhad, Erfan, Bae, Sungchul, Cho, Bum-Yean and Hui, Oscar K. S. (2017) Synthesis and characterization of cobalt hydroxide carbonate nanostructures. RSC Advances, 7 (74). pp. 46925-46931. ISSN 2046-2069

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    Abstract

    Battery-type electrodes of three-dimensional (3D) hierarchical cobalt hydroxide carbonate arrays on Ni foam were fabricated using a hydrothermal method for use in supercapacitors. X-ray diffraction analysis, scanning electron microscopy, and transmission electron microscopy were used to characterize their structures and morphologies. The cobalt hydroxide carbonate synthesized with 10 h reaction time showed the highest specific capacitance (1381 F g−1 at a current density of 2 A g−1) and excellent cycling stability (92% capacitance retention after 5000 cycles). Moreover, its capacitance increased by 33% at 2 A g−1 and by 10% at 20 A g−1 after 5000 charge–discharge cycles. This cobalt hydroxide carbonate composite is a promising candidate for electrochemical energy-related applications.

    Item Type: Article
    Faculty \ School: Faculty of Science > School of Mathematics
    Faculty of Social Sciences > Norwich Business School
    Related URLs:
    Depositing User: Pure Connector
    Date Deposited: 19 Oct 2017 06:07
    Last Modified: 25 Jul 2018 14:11
    URI: https://ueaeprints.uea.ac.uk/id/eprint/65182
    DOI: 10.1039/C7RA09050A

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