Coralloid and hierarchical Co3O4nanostructures used as supercapacitors with good cycling stability

Xiuhua Wang; Xiaoxiu Wu; Bingang Xu; Tao Hua

doi:10.1007/s10008-016-3125-7

Coralloid and hierarchical Co₃O₄nanostructures used as supercapacitors with good cycling stability

Xiuhua Wang, Xiaoxiu Wu, Bingang Xu, Tao Hua

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

23 Citations (Scopus)

Abstract

Coralloid and hierarchical Co3O4nanostructures were synthesized by a facile two-step approach composed of room temperature solution-phase synthesis without any surfactant and calcination of precursor. Owing to the unique structural features, the capacitance of Co3O4could reach up to 591 F g−1at a current density of 0.5 A g−1. Especially the cycling stability remained about 97 % after 2000 cycles at a current density of 1 A g−1. These results demonstrated that the coralloid and hierarchical Co3O4were excellent candidates for electrochemical supercapacitor devices.

Original language	English
Pages (from-to)	1303-1309
Number of pages	7
Journal	Journal of Solid State Electrochemistry
Volume	20
Issue number	5
DOIs	https://doi.org/10.1007/s10008-016-3125-7
Publication status	Published - 1 May 2016

Keywords

Co(OH) nanosheets 2
Coralloid Co O 3 4
Hierarchical
Solution-phase process
Supercapacitor

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Electrochemistry
Electrical and Electronic Engineering

More information

10.1007/s10008-016-3125-7

Cite this

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title = "Coralloid and hierarchical Co3O4nanostructures used as supercapacitors with good cycling stability",

abstract = "Coralloid and hierarchical Co3O4nanostructures were synthesized by a facile two-step approach composed of room temperature solution-phase synthesis without any surfactant and calcination of precursor. Owing to the unique structural features, the capacitance of Co3O4could reach up to 591 F g−1at a current density of 0.5 A g−1. Especially the cycling stability remained about 97 \% after 2000 cycles at a current density of 1 A g−1. These results demonstrated that the coralloid and hierarchical Co3O4were excellent candidates for electrochemical supercapacitor devices.",

keywords = "Co(OH) nanosheets 2, Coralloid Co O 3 4, Hierarchical, Solution-phase process, Supercapacitor",

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T1 - Coralloid and hierarchical Co3O4nanostructures used as supercapacitors with good cycling stability

AU - Wang, Xiuhua

AU - Wu, Xiaoxiu

AU - Xu, Bingang

AU - Hua, Tao

PY - 2016/5/1

Y1 - 2016/5/1

N2 - Coralloid and hierarchical Co3O4nanostructures were synthesized by a facile two-step approach composed of room temperature solution-phase synthesis without any surfactant and calcination of precursor. Owing to the unique structural features, the capacitance of Co3O4could reach up to 591 F g−1at a current density of 0.5 A g−1. Especially the cycling stability remained about 97 % after 2000 cycles at a current density of 1 A g−1. These results demonstrated that the coralloid and hierarchical Co3O4were excellent candidates for electrochemical supercapacitor devices.

AB - Coralloid and hierarchical Co3O4nanostructures were synthesized by a facile two-step approach composed of room temperature solution-phase synthesis without any surfactant and calcination of precursor. Owing to the unique structural features, the capacitance of Co3O4could reach up to 591 F g−1at a current density of 0.5 A g−1. Especially the cycling stability remained about 97 % after 2000 cycles at a current density of 1 A g−1. These results demonstrated that the coralloid and hierarchical Co3O4were excellent candidates for electrochemical supercapacitor devices.

KW - Co(OH) nanosheets 2

KW - Coralloid Co O 3 4

KW - Hierarchical

KW - Solution-phase process

KW - Supercapacitor

UR - https://www.scopus.com/pages/publications/84954505674

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DO - 10.1007/s10008-016-3125-7

M3 - Journal article

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SP - 1303

EP - 1309

JO - Journal of Solid State Electrochemistry

JF - Journal of Solid State Electrochemistry

IS - 5

ER -