Nanoporous Metal Oxides for Supercapacitor Applications

Joshi, Ved Prakash; Kumar, Nitish; Salunkhe, Rahul R.

doi:10.1007/978-3-030-68462-4_23

Cited by 2 publications

(1 citation statement)

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“…However, there are limited reports of extensively employing this method to produce superior electrode materials for SC applications. [21,22] High theoretical capacitance and a large surface area [23] are just two of the remarkable qualities of metal oxides that have led to their consideration as a viable material for electrodes in energy storage applications. As an appealing electrode materi-al, manganese oxide (MnO 2 ) has been widely utilized in the literature for SC application [24,25] due to its high theoretical specific capacitance of 1370 F g À 1 .…”

Section: Introductionmentioning

confidence: 99%

Asymmetric Supercapacitors using Manganese Oxide Nanorods and Activated Carbon

et al. 2022

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The utilization of Ionic liquids (ILs) for synthesizing inorganic materials has shown considerable potential in the last decade. The unmatchable advantages, like low vapor pressure, good thermal stability, tunable solubility, and synthesis route flexibility, make them more promising than their aqueous counterparts. This work portrays the use of various ILs for synthesizing asymmetrically oriented α-MnO 2 nanorods. The formation of nanorods was more energetically favorable, and the addition of IL helped increase the material's surface area and conductivity. The enhanced surface and conductivity help in boosting the supercapacitive performance, as the material exhibits 352 F g À 1 in 1 M Na 2 SO 4 electrolyte. The synthesized material and activated carbon were used to assemble an asymmetric supercapacitor device. This device has shown an excellent energy density of 28.5 Wh kg À 1 and a power density of 96.5 W kg À 1 in 1 M Na 2 SO 4 electrolyte.

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