Template-free synthesis of urchin-like Co3O4 hollow spheres with good lithium storage properties

Xianhong Rui; Huiteng Tan; Daohao Sim; Weiling Liu; Chen Xu; Huey Hoon Hng; Rachid Yazami; Tuti Mariana Lim; Qingyu Yan

doi:10.1016/j.jpowsour.2012.08.094

Template-free synthesis of urchin-like Co₃O₄ hollow spheres with good lithium storage properties

Xianhong Rui, Huiteng Tan, Daohao Sim, Weiling Liu, Chen Xu, Huey Hoon Hng, Rachid Yazami, Tuti Mariana Lim, Qingyu Yan^*

^*Corresponding author for this work

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

129 Citations (Scopus)

Abstract

Hierarchical urchin-like hollow spheres (5-8 μm in diameter) assembled by one-dimensional nanowires consisting of many interconnected Co ₃O₄ nanoparticles (10-50 nm) are successfully synthesized. Co(CO₃)_0.5(OH)·0.11H₂O precursors are firstly prepared by a hydrothermal process. The morphological evolution process of Co(CO₃)_0.5(OH)$_0.11H₂O hollow urchin precursors is investigated and a plausible mechanism is proposed. Then, the Co(CO₃)_0.5(OH)·0.11H₂O are converted to Co₃O₄ through heat treatment in air. As an anode material for lithium ion batteries, urchin-like Co₃O ₄ hollow spheres exhibit highly reversible specific capacities, good cycling stabilities and excellent rate capabilities (e.g., 433 mAh g ^-1 at 10 C). The superior performances result from the synergetic effect of integral urchin-like microstructure, small diffusion lengths in the nanoparticle building blocks and sufficient void space to buffer the volume expansion.

Original language	English
Pages (from-to)	97-102
Number of pages	6
Journal	Journal of Power Sources
Volume	222
DOIs	https://doi.org/10.1016/j.jpowsour.2012.08.094
Publication status	Published - 2013
Externally published	Yes

ASJC Scopus Subject Areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

Keywords

Cobalt oxide
High rate capability
Hollow spheres
Lithium ion battery
Urchin-like architecture

UN SDGs

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

Access to Document

10.1016/j.jpowsour.2012.08.094

Cite this

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title = "Template-free synthesis of urchin-like Co3O4 hollow spheres with good lithium storage properties",

abstract = "Hierarchical urchin-like hollow spheres (5-8 μm in diameter) assembled by one-dimensional nanowires consisting of many interconnected Co 3O4 nanoparticles (10-50 nm) are successfully synthesized. Co(CO3)0.5(OH)·0.11H2O precursors are firstly prepared by a hydrothermal process. The morphological evolution process of Co(CO3)0.5(OH)$0.11H2O hollow urchin precursors is investigated and a plausible mechanism is proposed. Then, the Co(CO3)0.5(OH)·0.11H2O are converted to Co3O4 through heat treatment in air. As an anode material for lithium ion batteries, urchin-like Co3O 4 hollow spheres exhibit highly reversible specific capacities, good cycling stabilities and excellent rate capabilities (e.g., 433 mAh g -1 at 10 C). The superior performances result from the synergetic effect of integral urchin-like microstructure, small diffusion lengths in the nanoparticle building blocks and sufficient void space to buffer the volume expansion.",

keywords = "Cobalt oxide, High rate capability, Hollow spheres, Lithium ion battery, Urchin-like architecture",

author = "Xianhong Rui and Huiteng Tan and Daohao Sim and Weiling Liu and Chen Xu and Hng, {Huey Hoon} and Rachid Yazami and Lim, {Tuti Mariana} and Qingyu Yan",

year = "2013",

doi = "10.1016/j.jpowsour.2012.08.094",

language = "English",

volume = "222",

pages = "97--102",

journal = "Journal of Power Sources",

issn = "0378-7753",

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T1 - Template-free synthesis of urchin-like Co3O4 hollow spheres with good lithium storage properties

AU - Rui, Xianhong

AU - Tan, Huiteng

AU - Sim, Daohao

AU - Liu, Weiling

AU - Xu, Chen

AU - Hng, Huey Hoon

AU - Yazami, Rachid

AU - Lim, Tuti Mariana

AU - Yan, Qingyu

PY - 2013

Y1 - 2013

N2 - Hierarchical urchin-like hollow spheres (5-8 μm in diameter) assembled by one-dimensional nanowires consisting of many interconnected Co 3O4 nanoparticles (10-50 nm) are successfully synthesized. Co(CO3)0.5(OH)·0.11H2O precursors are firstly prepared by a hydrothermal process. The morphological evolution process of Co(CO3)0.5(OH)$0.11H2O hollow urchin precursors is investigated and a plausible mechanism is proposed. Then, the Co(CO3)0.5(OH)·0.11H2O are converted to Co3O4 through heat treatment in air. As an anode material for lithium ion batteries, urchin-like Co3O 4 hollow spheres exhibit highly reversible specific capacities, good cycling stabilities and excellent rate capabilities (e.g., 433 mAh g -1 at 10 C). The superior performances result from the synergetic effect of integral urchin-like microstructure, small diffusion lengths in the nanoparticle building blocks and sufficient void space to buffer the volume expansion.

AB - Hierarchical urchin-like hollow spheres (5-8 μm in diameter) assembled by one-dimensional nanowires consisting of many interconnected Co 3O4 nanoparticles (10-50 nm) are successfully synthesized. Co(CO3)0.5(OH)·0.11H2O precursors are firstly prepared by a hydrothermal process. The morphological evolution process of Co(CO3)0.5(OH)$0.11H2O hollow urchin precursors is investigated and a plausible mechanism is proposed. Then, the Co(CO3)0.5(OH)·0.11H2O are converted to Co3O4 through heat treatment in air. As an anode material for lithium ion batteries, urchin-like Co3O 4 hollow spheres exhibit highly reversible specific capacities, good cycling stabilities and excellent rate capabilities (e.g., 433 mAh g -1 at 10 C). The superior performances result from the synergetic effect of integral urchin-like microstructure, small diffusion lengths in the nanoparticle building blocks and sufficient void space to buffer the volume expansion.

KW - Cobalt oxide

KW - High rate capability

KW - Hollow spheres

KW - Lithium ion battery

KW - Urchin-like architecture

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