Nickel cobalt oxide-single wall carbon nanotube composite material for superior cycling stability and high-performance supercapacitor application

Xu Wang; Xuanding Han; Mengfang Lim; Nandan Singh; Chee Lip Gan; Ma Jan; Pooi See Lee

doi:10.1021/jp3028353

Nickel cobalt oxide-single wall carbon nanotube composite material for superior cycling stability and high-performance supercapacitor application

Xu Wang, Xuanding Han, Mengfang Lim, Nandan Singh, Chee Lip Gan, Ma Jan, Pooi See Lee^*

^*Corresponding author for this work

Nanyang Technological University

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

302 Citations (Scopus)

Abstract

The electron conductivity of electrode material has always been a problem that hinders the practical application of supercapacitor. In this contribution, we report a facile synthesis of highly conductive nickel cobalt oxide-single wall carbon nanotube (NiCo ₂O ₄-SWCNT) nanocomposite by controlled hydrolysis process in ethanol-water mixed solvent. Ultrafine NiCo ₂O ₄ nanocrystals with a diameter around 6-10 nm are formed on the functionalized SWCNT bundles. This novel material not only exhibits a high specific capacitance of 1642 F g ^-1 within a 0.45 V potential range but also shows an excellent cycling stability of 94.1% retention after 2000 cycles at high mass loading. Our method provides a promising facile and high-performance strategy for supercapacitor electrode application.

Original language	English
Pages (from-to)	12448-12454
Number of pages	7
Journal	Journal of Physical Chemistry C
Volume	116
Issue number	23
DOIs	https://doi.org/10.1021/jp3028353
Publication status	Published - Jun 14 2012
Externally published	Yes

ASJC Scopus Subject Areas

Electronic, Optical and Magnetic Materials
General Energy
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

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title = "Nickel cobalt oxide-single wall carbon nanotube composite material for superior cycling stability and high-performance supercapacitor application",

abstract = "The electron conductivity of electrode material has always been a problem that hinders the practical application of supercapacitor. In this contribution, we report a facile synthesis of highly conductive nickel cobalt oxide-single wall carbon nanotube (NiCo 2O 4-SWCNT) nanocomposite by controlled hydrolysis process in ethanol-water mixed solvent. Ultrafine NiCo 2O 4 nanocrystals with a diameter around 6-10 nm are formed on the functionalized SWCNT bundles. This novel material not only exhibits a high specific capacitance of 1642 F g -1 within a 0.45 V potential range but also shows an excellent cycling stability of 94.1% retention after 2000 cycles at high mass loading. Our method provides a promising facile and high-performance strategy for supercapacitor electrode application.",

author = "Xu Wang and Xuanding Han and Mengfang Lim and Nandan Singh and Gan, {Chee Lip} and Ma Jan and Lee, {Pooi See}",

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T1 - Nickel cobalt oxide-single wall carbon nanotube composite material for superior cycling stability and high-performance supercapacitor application

AU - Wang, Xu

AU - Han, Xuanding

AU - Lim, Mengfang

AU - Singh, Nandan

AU - Gan, Chee Lip

AU - Jan, Ma

AU - Lee, Pooi See

PY - 2012/6/14

Y1 - 2012/6/14

N2 - The electron conductivity of electrode material has always been a problem that hinders the practical application of supercapacitor. In this contribution, we report a facile synthesis of highly conductive nickel cobalt oxide-single wall carbon nanotube (NiCo 2O 4-SWCNT) nanocomposite by controlled hydrolysis process in ethanol-water mixed solvent. Ultrafine NiCo 2O 4 nanocrystals with a diameter around 6-10 nm are formed on the functionalized SWCNT bundles. This novel material not only exhibits a high specific capacitance of 1642 F g -1 within a 0.45 V potential range but also shows an excellent cycling stability of 94.1% retention after 2000 cycles at high mass loading. Our method provides a promising facile and high-performance strategy for supercapacitor electrode application.

AB - The electron conductivity of electrode material has always been a problem that hinders the practical application of supercapacitor. In this contribution, we report a facile synthesis of highly conductive nickel cobalt oxide-single wall carbon nanotube (NiCo 2O 4-SWCNT) nanocomposite by controlled hydrolysis process in ethanol-water mixed solvent. Ultrafine NiCo 2O 4 nanocrystals with a diameter around 6-10 nm are formed on the functionalized SWCNT bundles. This novel material not only exhibits a high specific capacitance of 1642 F g -1 within a 0.45 V potential range but also shows an excellent cycling stability of 94.1% retention after 2000 cycles at high mass loading. Our method provides a promising facile and high-performance strategy for supercapacitor electrode application.

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Nickel cobalt oxide-single wall carbon nanotube composite material for superior cycling stability and high-performance supercapacitor application

Abstract

ASJC Scopus Subject Areas

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