Three-dimensional networked NiCo2O4/MnO2 branched nanowire heterostructure arrays on nickel foam with enhanced supercapacitor performance

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)1717-1723
Journal / PublicationJournal of Materials Chemistry A
Volume3
Issue number4
Publication statusPublished - 28 Jan 2015

Abstract

Networked branched nanowire heterostructure (BNH) hybrid materials are very promising for supercapacitor electrodes, providing enhanced electrochemical performance compared with electrodes comprising a single constituent or core/shell nanowire heterostructures. Herein, by using a one-step hydrothermal reaction followed by a post-annealing treatment, we synthesized networked NiCo2O4/MnO2 BNH arrays on Ni foam substrates and applied them as electrodes in supercapacitors. The as-prepared electrodes exhibit ultrahigh specific capacitance, excellent rate capability, and superb cycling stability at a high charge/discharge current density. This outstanding overall electrochemical performance is attributed to the effective conductive transport path between component materials, reduced electron- and ion-transport pathways, enhanced surface area, and facile electrolyte infiltration into the 3D networked BNH. The networked BNH design may provide a universal approach for the development of new electrode materials for high-performance pseudocapacitors. This journal is

Citation Format(s)

Three-dimensional networked NiCo2O4/MnO2 branched nanowire heterostructure arrays on nickel foam with enhanced supercapacitor performance. / Zou, Rujia; Yuen, Muk Fung; Zhang, Zhenyu; Hu, Junqing; Zhang, Wenjun.

In: Journal of Materials Chemistry A, Vol. 3, No. 4, 28.01.2015, p. 1717-1723.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review