Asymmetric supercapacitors with dominant pseudocapacitance based on manganese oxide nanoflowers in a neutral aqueous electrolyte
By Li, Qiang; Sun, Xing; Lozano, Karen & Mao, Yuanbing
Published in RSC Adv.
The Royal Society of Chemistry
2013
Abstract
Unique MnO2 nanoflowers ([similar]25 nm) composed of ultrathin K0.26MnO2 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.