Growth of Ultrathin ZnCo2O4 Nanosheets on Reduced Graphene Oxide with Enhanced Lithium Storage Properties

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
Article number1400014
Journal / PublicationAdvanced Science
Volume2
Issue number1-2
Publication statusPublished - 1 Feb 2015
Externally publishedYes

Abstract

The growth of ultrathin ZnCo<sub>2</sub>O<sub>4</sub> nanosheets on reduced graphene oxide (denoted as rGO/ZnCo<sub>2</sub>O<sub>4</sub>) via a facile low-temperature solution method combined with a subsequent annealing treatment is reported. With the assistance of citrate, interconnected ZnCo<sub>2</sub>O<sub>4</sub> nanosheets can assemble into hierarchically porous overlays on both sides of rGO sheets. Such a hybrid nanostructure would effectively faciliate the charge transport and accommodate volume variation upon prolonged charge/discharge cycling for reversible lithium storage. As a result, the rGO/ZnCo<sub>2</sub>O<sub>4</sub> nanocomposite manifests a very stable high reversible capacity of around 960 mAh g<sup>−1</sup> over 100 cycles at a low current density of 90 mA g<sup>−1</sup> and excellent rate capability. © 2015 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Research Area(s)

  • batteries, graphene oxide, hybrid nanostructures, lithium storage, nanocomposites, nanosheets

Bibliographic Note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to lbscholars@cityu.edu.hk.

Citation Format(s)

Growth of Ultrathin ZnCo2O4 Nanosheets on Reduced Graphene Oxide with Enhanced Lithium Storage Properties. / Gao, Guoxin; Wu, Hao Bin; Dong, Bitao et al.
In: Advanced Science, Vol. 2, No. 1-2, 1400014, 01.02.2015.

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