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Article Abstract
The energy storage ability of a device highly depends on the morphology of the materials used. A structure-directing agent (SDA) can be used to design materials with a specific surface morphology. Zeolite imidazole (ZIF-67) is a favorable electroactive material for energy storage devices. Here, we present a novel approach for synthesizing a ZIF-67 derived NiCo layer double hydroxide hollow surface sheet like morphology, in which potassium fluoroborate acts as a SDA. The hollow sheets possess the largest specific capacitance of 1171 F g at 1 A g. The energy storage device composed of ZIF-67 derivatives and a carbon electrode presents a maximum energy density of 26 W h kg at a power density of 804 W kg. The device shows good cyclic stability of 84% after 10 000 charge-discharge cycles. These outcomes reveal the promising potential of zeolite imidazole (ZIF-67)-based materials for use in next-generation energy storage devices.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12086822 | PMC |
| http://dx.doi.org/10.1039/d5ra01889g | DOI Listing |
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