Asymmetric supercapacitors with dominant pseudocapacitance based on manganese oxide nanoflowers in a neutral aqueous electrolyte

Qiang Li; Xing Sun; Karen Lozano; Yuanbing Mao

doi:10.1039/C3RA45140B

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Asymmetric supercapacitors with dominant pseudocapacitance based on manganese oxide nanoflowers in a neutral aqueous electrolyte†

Qiang Li,^ab Xing Sun,^a Karen Lozano^b and Yuanbing Mao*^a

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* Corresponding authors

^a Department of Chemistry, University of Texas – Pan American, Edinburg, TX 78539, USA
E-mail: maoy@utpa.edu
Fax: +1 956 665 5006
Tel: +1 956 665 2417

^b Department of Mechanical Engineering, University of Texas – Pan American, Edinburg, TX 78539, USA

Abstract

Unique MnO₂ nanoflowers (∼25 nm) composed of ultrathin K_0.26MnO₂ nanoflake assemblies were synthesized by a facile and green procedure. Prototype MnO₂-NFs//KCl//CNTs asymmetric supercapacitors in a neutral aqueous electrolyte demonstrated pseudocapacitive dominance for the first time in addition to outstanding energy and power densities and superior cycling performance.

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Article information

DOI: https://doi.org/10.1039/C3RA45140B
Article type: Communication
Submitted: 15 Sep 2013
Accepted: 11 Oct 2013
First published: 14 Oct 2013

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RSC Adv., 2013,3, 24886-24890

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Asymmetric supercapacitors with dominant pseudocapacitance based on manganese oxide nanoflowers in a neutral aqueous electrolyte

Q. Li, X. Sun, K. Lozano and Y. Mao, RSC Adv., 2013, 3, 24886 DOI: 10.1039/C3RA45140B

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Asymmetric supercapacitors with dominant pseudocapacitance based on manganese oxide nanoflowers in a neutral aqueous electrolyte†

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Asymmetric supercapacitors with dominant pseudocapacitance based on manganese oxide nanoflowers in a neutral aqueous electrolyte

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