Abstract
In order to produce economically viable supercapacitor devices for electrical energy storage, low cost, and high throughput methods must be developed. We developed a microwave based synthesis for the formation of β-Ni(OH)2 for the formation of nickel oxide nanoplates. These nanoplates have shown excellent properties as pseudocapacitive devices with high-specific capacitance. Novel to this article is the use of a microwave reactor which enables a growth process of only 10 min in duration as compared to previous reports requiring a 24 h period. The resulting NiO nanoplates were fully characterized by electron microscopy, electron diffraction, energy dispersive X-ray spectroscopy, UV–Vis spectroscopy, thermo gravimetric analysis, and surface area and porosity measurements. Nanoplates formed using the microwave reactor is similar to those formed by hydrothermal processes. NiO-single walled carbon nanotube composites were made without any binder and the specific capacitance was measured using charge discharge techniques.
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Acknowledgements
We acknowledge the generous support of the Nanoscale Science Ph.D. program at UNC Charlotte for facilities funding. We also acknowledge the ACS and the Project SEED endowment for supporting Colton Overson and the Charlotte Research Scholars program at UNC Charlotte for supporting Dylan Brokaw.
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Behm, N., Brokaw, D., Overson, C. et al. High-throughput microwave synthesis and characterization of NiO nanoplates for supercapacitor devices. J Mater Sci 48, 1711–1716 (2013). https://doi.org/10.1007/s10853-012-6929-6
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DOI: https://doi.org/10.1007/s10853-012-6929-6