Electrospun porous NiCo2O4 nanotubes as advanced electrodes for electrochemical capacitors

Linlin Li; Shengjie Peng; Yanling Cheah; Peifen Teh; Jin Wang; Grace Wee; Yahwen Ko; Chuiling Wong; Madhavi Srinivasan

doi:10.1002/chem.201204153

Electrospun porous NiCo₂O₄ nanotubes as advanced electrodes for electrochemical capacitors

Linlin Li, Shengjie Peng, Yanling Cheah, Peifen Teh, Jin Wang, Grace Wee, Yahwen Ko, Chuiling Wong, Madhavi Srinivasan^*

^*Corresponding author for this work

Nanyang Technological University

Research output: Contribution to journal › Article › peer-review

267 Citations (Scopus)

Abstract

Novel, porous NiCo₂O₄ nanotubes (NCO-NTs) are prepared by a single-spinneret electrospinning technique followed by calcination in air. The obtained NCO-NTs display a one-dimensional architecture with a porous structure and hollow interiors. The effect of precursor concentration on the morphologies of the products is investigated. Due to their unique structure, the prepared NCO-NT electrode exhibits a high specific capacitance (1647 F g^-1 at 1 A g^-1), excellent rate capability (77.3 % capacity retention at 25 A g^-1), and outstanding cycling stability (6.4 % loss after 3000 cycles), which indicates it has great potential for high-performance electrochemical capacitors. The desirable enhanced capacitive performance of NCO-NTs can be attributed to the relatively large specific surface area of these porous and hollow one-dimensional nanostructures.

Original language	English
Pages (from-to)	5892-5898
Number of pages	7
Journal	Chemistry - A European Journal
Volume	19
Issue number	19
DOIs	https://doi.org/10.1002/chem.201204153
Publication status	Published - May 3 2013
Externally published	Yes

ASJC Scopus Subject Areas

Catalysis
Organic Chemistry

Keywords

electrochemical capacitors
electrochemical performance
electrochemistry
electrospinning
nanostructures
porous NiCoO nanotubes

Access to Document

10.1002/chem.201204153

Cite this

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title = "Electrospun porous NiCo2O4 nanotubes as advanced electrodes for electrochemical capacitors",

abstract = "Novel, porous NiCo2O4 nanotubes (NCO-NTs) are prepared by a single-spinneret electrospinning technique followed by calcination in air. The obtained NCO-NTs display a one-dimensional architecture with a porous structure and hollow interiors. The effect of precursor concentration on the morphologies of the products is investigated. Due to their unique structure, the prepared NCO-NT electrode exhibits a high specific capacitance (1647 F g-1 at 1 A g-1), excellent rate capability (77.3 % capacity retention at 25 A g-1), and outstanding cycling stability (6.4 % loss after 3000 cycles), which indicates it has great potential for high-performance electrochemical capacitors. The desirable enhanced capacitive performance of NCO-NTs can be attributed to the relatively large specific surface area of these porous and hollow one-dimensional nanostructures.",

keywords = "electrochemical capacitors, electrochemical performance, electrochemistry, electrospinning, nanostructures, porous NiCoO nanotubes",

author = "Linlin Li and Shengjie Peng and Yanling Cheah and Peifen Teh and Jin Wang and Grace Wee and Yahwen Ko and Chuiling Wong and Madhavi Srinivasan",

year = "2013",

month = may,

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doi = "10.1002/chem.201204153",

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T1 - Electrospun porous NiCo2O4 nanotubes as advanced electrodes for electrochemical capacitors

AU - Li, Linlin

AU - Peng, Shengjie

AU - Cheah, Yanling

AU - Teh, Peifen

AU - Wang, Jin

AU - Wee, Grace

AU - Ko, Yahwen

AU - Wong, Chuiling

AU - Srinivasan, Madhavi

PY - 2013/5/3

Y1 - 2013/5/3

N2 - Novel, porous NiCo2O4 nanotubes (NCO-NTs) are prepared by a single-spinneret electrospinning technique followed by calcination in air. The obtained NCO-NTs display a one-dimensional architecture with a porous structure and hollow interiors. The effect of precursor concentration on the morphologies of the products is investigated. Due to their unique structure, the prepared NCO-NT electrode exhibits a high specific capacitance (1647 F g-1 at 1 A g-1), excellent rate capability (77.3 % capacity retention at 25 A g-1), and outstanding cycling stability (6.4 % loss after 3000 cycles), which indicates it has great potential for high-performance electrochemical capacitors. The desirable enhanced capacitive performance of NCO-NTs can be attributed to the relatively large specific surface area of these porous and hollow one-dimensional nanostructures.

AB - Novel, porous NiCo2O4 nanotubes (NCO-NTs) are prepared by a single-spinneret electrospinning technique followed by calcination in air. The obtained NCO-NTs display a one-dimensional architecture with a porous structure and hollow interiors. The effect of precursor concentration on the morphologies of the products is investigated. Due to their unique structure, the prepared NCO-NT electrode exhibits a high specific capacitance (1647 F g-1 at 1 A g-1), excellent rate capability (77.3 % capacity retention at 25 A g-1), and outstanding cycling stability (6.4 % loss after 3000 cycles), which indicates it has great potential for high-performance electrochemical capacitors. The desirable enhanced capacitive performance of NCO-NTs can be attributed to the relatively large specific surface area of these porous and hollow one-dimensional nanostructures.

KW - electrochemical capacitors

KW - electrochemical performance

KW - electrochemistry

KW - electrospinning

KW - nanostructures

KW - porous NiCoO nanotubes

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