Self-assembled nickel hydroxide three-dimensional nanostructures: A nanomaterial for alkaline rechargeable batteries

Minhua Cao; Xiaoyan He; Jun Chen; Changwen Hu

doi:10.1021/cg060524w

Self-assembled nickel hydroxide three-dimensional nanostructures: A nanomaterial for alkaline rechargeable batteries

Minhua Cao^*, Xiaoyan He, Jun Chen, Changwen Hu

^*Corresponding author for this work

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

166 Citations (Scopus)

Abstract

α- and β-Ni(OH)₂ with three-dimensional (3D) nanostructures were synthesized in a water-in-oil reverse micelle/microemulsion system. The form and shape of Ni(OH)₂ can be readily tuned by adjusting experimental parameters of the reverse micelle/microemulsion system. α-Ni(OH)₂ with dandelion-like nanostructures was obtained in the reverse microemulsion of cetyltrimethylammonium bromide (CTAB)/water/ cyclohexane/n-pentanol with a molar ratio of H₂O to surfactant of 40; β-Ni(OH)₂ phase with flower-like nanostructures was formed in the reverse micelles of the same composition with a molar ratio of H ₂O to surfactant of 10. Electrochemical measurements of the as-synthesized α-Ni(OH)₂ phase showed that the 3D α-Ni(OH)₂ nanostructures exhibited superior cycling reversibility and improved capacity compared with commercial Ni(OH)₂.

Original language	English
Pages (from-to)	170-174
Number of pages	5
Journal	Crystal Growth and Design
Volume	7
Issue number	1
DOIs	https://doi.org/10.1021/cg060524w
Publication status	Published - Jan 2007
Externally published	Yes

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abstract = "α- and β-Ni(OH)2 with three-dimensional (3D) nanostructures were synthesized in a water-in-oil reverse micelle/microemulsion system. The form and shape of Ni(OH)2 can be readily tuned by adjusting experimental parameters of the reverse micelle/microemulsion system. α-Ni(OH)2 with dandelion-like nanostructures was obtained in the reverse microemulsion of cetyltrimethylammonium bromide (CTAB)/water/ cyclohexane/n-pentanol with a molar ratio of H2O to surfactant of 40; β-Ni(OH)2 phase with flower-like nanostructures was formed in the reverse micelles of the same composition with a molar ratio of H 2O to surfactant of 10. Electrochemical measurements of the as-synthesized α-Ni(OH)2 phase showed that the 3D α-Ni(OH)2 nanostructures exhibited superior cycling reversibility and improved capacity compared with commercial Ni(OH)2.",

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T1 - Self-assembled nickel hydroxide three-dimensional nanostructures

T2 - A nanomaterial for alkaline rechargeable batteries

AU - Cao, Minhua

AU - He, Xiaoyan

AU - Chen, Jun

AU - Hu, Changwen

PY - 2007/1

Y1 - 2007/1

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AB - α- and β-Ni(OH)2 with three-dimensional (3D) nanostructures were synthesized in a water-in-oil reverse micelle/microemulsion system. The form and shape of Ni(OH)2 can be readily tuned by adjusting experimental parameters of the reverse micelle/microemulsion system. α-Ni(OH)2 with dandelion-like nanostructures was obtained in the reverse microemulsion of cetyltrimethylammonium bromide (CTAB)/water/ cyclohexane/n-pentanol with a molar ratio of H2O to surfactant of 40; β-Ni(OH)2 phase with flower-like nanostructures was formed in the reverse micelles of the same composition with a molar ratio of H 2O to surfactant of 10. Electrochemical measurements of the as-synthesized α-Ni(OH)2 phase showed that the 3D α-Ni(OH)2 nanostructures exhibited superior cycling reversibility and improved capacity compared with commercial Ni(OH)2.

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Self-assembled nickel hydroxide three-dimensional nanostructures: A nanomaterial for alkaline rechargeable batteries

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