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Transition-metal-based layered double hydroxides tailored for energy conversion and storage

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Abstract

Currently, energy storage devices draw considerable attention owing to the growing need for clean energy. The depletion of fossil fuels and the generation of greenhouse gases have led to the development of alternative, environmentally friendly energy storage devices. Supercapacitors with high power densities are excellent devices for energy storage. Although carbon-based materials are widely used in such devices, their non-faradic behavior in electrical double layer capacitors (EDLCs) limits the maximum power density that can be generated. In contrast, the faradaic mechanism of transition metal hydroxides results in better capacitance rates along with good stability during cycling. This review is confined to nickel cobalt layered double hydroxides (NiCo LDHs) classified based on the fabrication of electrodes for application in supercapacitors. We discuss the growth of the active LDH material in situ or ex situ on the current collector and how the synthesis can affect the crystal structure as well as the electrochemical performance of the electrode.

Graphical abstract: Transition-metal-based layered double hydroxides tailored for energy conversion and storage

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Publication details

The article was received on 24 Oct 2017, accepted on 22 Nov 2017 and first published on 23 Nov 2017


Article type: Review Article
DOI: 10.1039/C7TA09370E
Citation: J. Mater. Chem. A, 2018, Advance Article
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    Transition-metal-based layered double hydroxides tailored for energy conversion and storage

    R. Patel, J. T. Park, M. Patel, J. K. Dash, E. B. Gowd, R. Karpoormath, A. Mishra, J. Kwak and J. H. Kim, J. Mater. Chem. A, 2018, Advance Article , DOI: 10.1039/C7TA09370E

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