Self-supported formation of needlelike Co3O4 nanotubes and their application as lithium-ion battery electrodes

Xiong Wen Lou; Da Deng; Jim Yang Lee; Ji Feng; Lynden A. Archer

doi:10.1002/adma.200702412

Self-supported formation of needlelike Co₃O₄ nanotubes and their application as lithium-ion battery electrodes

Xiong Wen Lou, Da Deng, Jim Yang Lee, Ji Feng, Lynden A. Archer

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

1001 Citations (Scopus)

Abstract

A one-step self-supported topotactic transformation method for the formation of needlelike Co₃O₄ nanotubes and its potential application as lithium-ion battery electrodes are discussed. The loosely organized β-Co(OH)₂ nanoplatelets undergo was treated with air to undergo a thermodynamically favorable oxidation reaction and the solid materials in the core region of the nanoneedles are evacuated through dissolution and reoxidation/deposition. High-resolution transmission electron microscopy (HRTEM) and scanning electron microscopy (SEM) were used for characterization of the nanoneedles surface. Time-dependent XRD patterns were monitored to study the topotactic transformation during the formation of nanotubes. The as-prepared needlelike nanotubes were shown to have improved cycle life and high rate capability with nearly 100% capacity retention for over 30 cycles.

Original language	English
Pages (from-to)	258-262
Journal	Advanced Materials
Volume	20
Issue number	2
DOIs	https://doi.org/10.1002/adma.200702412
Publication status	Published - 18 Jan 2008
Externally published	Yes

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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 [email protected].

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This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

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Cite this

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title = "Self-supported formation of needlelike Co3O4 nanotubes and their application as lithium-ion battery electrodes",

abstract = "A one-step self-supported topotactic transformation method for the formation of needlelike Co3O4 nanotubes and its potential application as lithium-ion battery electrodes are discussed. The loosely organized β-Co(OH)2 nanoplatelets undergo was treated with air to undergo a thermodynamically favorable oxidation reaction and the solid materials in the core region of the nanoneedles are evacuated through dissolution and reoxidation/deposition. High-resolution transmission electron microscopy (HRTEM) and scanning electron microscopy (SEM) were used for characterization of the nanoneedles surface. Time-dependent XRD patterns were monitored to study the topotactic transformation during the formation of nanotubes. The as-prepared needlelike nanotubes were shown to have improved cycle life and high rate capability with nearly 100% capacity retention for over 30 cycles.",

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T1 - Self-supported formation of needlelike Co3O4 nanotubes and their application as lithium-ion battery electrodes

AU - Lou, Xiong Wen

AU - Deng, Da

AU - Lee, Jim Yang

AU - Feng, Ji

AU - Archer, Lynden A.

N1 - 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 [email protected].

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Y1 - 2008/1/18

N2 - A one-step self-supported topotactic transformation method for the formation of needlelike Co3O4 nanotubes and its potential application as lithium-ion battery electrodes are discussed. The loosely organized β-Co(OH)2 nanoplatelets undergo was treated with air to undergo a thermodynamically favorable oxidation reaction and the solid materials in the core region of the nanoneedles are evacuated through dissolution and reoxidation/deposition. High-resolution transmission electron microscopy (HRTEM) and scanning electron microscopy (SEM) were used for characterization of the nanoneedles surface. Time-dependent XRD patterns were monitored to study the topotactic transformation during the formation of nanotubes. The as-prepared needlelike nanotubes were shown to have improved cycle life and high rate capability with nearly 100% capacity retention for over 30 cycles.

AB - A one-step self-supported topotactic transformation method for the formation of needlelike Co3O4 nanotubes and its potential application as lithium-ion battery electrodes are discussed. The loosely organized β-Co(OH)2 nanoplatelets undergo was treated with air to undergo a thermodynamically favorable oxidation reaction and the solid materials in the core region of the nanoneedles are evacuated through dissolution and reoxidation/deposition. High-resolution transmission electron microscopy (HRTEM) and scanning electron microscopy (SEM) were used for characterization of the nanoneedles surface. Time-dependent XRD patterns were monitored to study the topotactic transformation during the formation of nanotubes. The as-prepared needlelike nanotubes were shown to have improved cycle life and high rate capability with nearly 100% capacity retention for over 30 cycles.

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JO - Advanced Materials

JF - Advanced Materials

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