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. ORCID: (2017) Synthesis and characterization of cobalt hydroxide carbonate nanostructures. RSC Advances, 7 (74). pp. 46925-46931. ISSN 2046-2069

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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 Engineering
UEA Research Groups: Faculty of Science > Research Groups > Energy Materials Laboratory
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Depositing User: Pure Connector
Date Deposited: 19 Oct 2017 05:07
Last Modified: 13 Apr 2023 13:53
DOI: 10.1039/C7RA09050A


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