Low-temperature synthesis of two-dimensional nanostructured Co3O4 and improved electrochemical properties for lithium-ion batteries

Zhongpei Lu, Jingjing Ding, Xuehong Lin, Yang Liu, Haitao Ye, Gang Yang*, Fan Yin, Bo Yan

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

Urea as a cheap reagent is very useful in preparation two-dimensional metal oxides with tunable crystal morphologies, while refluxing method is a simple route to control the decomposition of urea. Here, a low temperature refluxing in the presence of urea is developed to prepare porous Co3O4 as anode material for lithium-ion batteries. The self-assembly cobalt hydrotalcite-like compounds (Co-HLC) is firstly synthesized through refluxing the mixture of cobaltous nitrate and urea. After pyrolysis, the flower-like morphology of Co-HLC is successfully maintained in the final product of Co3O4. The ordered two-dimensional Co3O4 nanosheets provide good contact with electrolyte and stable porous structure during lithiation/delithiation. Co3O4-120 synthesized under refluxing temperature of 120 °C shows the initial charge capacities of 722 and 741 mAh g−1 at the 2nd and 100th cycle under 100 mA g−1. Moreover, Co3O4-120 as electrode for a supercapacitor presents excellent capacitance, 167 F g−1 after 3000 cycles at 1 A g−1. Under 5, 10 and 20 A g−1, Co3O4-120 electrode delivers 128, 104 and 90 F g−1, respectively. The porous structure in Co3O4 with enhanced electrochemical performance indicates low temperature refluxing preparation is an applicable and energy-saved method to synthesize transitional metal oxide with tunable crystal morphologies.
Original languageEnglish
Pages (from-to)22–30
Number of pages9
JournalPowder Technology
Volume309
Early online date29 Dec 2016
DOIs
Publication statusPublished - Mar 2017

Fingerprint

hydrotalcite
Electrochemical properties
Urea
Cobalt
Oxides
Metals
Temperature
Crystals
Electrodes
Nanosheets
Self assembly
Electrolytes
Nitrates
Anodes
Pyrolysis
Capacitance
Decomposition
Lithium-ion batteries

Bibliographical note

© 2016, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

Keywords

  • anode materials
  • electrochemical performance
  • hydrotalcite-like compounds
  • lithium-ion batteries
  • metal oxide
  • refluxing

Cite this

Lu, Zhongpei ; Ding, Jingjing ; Lin, Xuehong ; Liu, Yang ; Ye, Haitao ; Yang, Gang ; Yin, Fan ; Yan, Bo. / Low-temperature synthesis of two-dimensional nanostructured Co3O4 and improved electrochemical properties for lithium-ion batteries. In: Powder Technology. 2017 ; Vol. 309. pp. 22–30.
@article{4649939f82434da1b4e3c5b8afa3e30a,
title = "Low-temperature synthesis of two-dimensional nanostructured Co3O4 and improved electrochemical properties for lithium-ion batteries",
abstract = "Urea as a cheap reagent is very useful in preparation two-dimensional metal oxides with tunable crystal morphologies, while refluxing method is a simple route to control the decomposition of urea. Here, a low temperature refluxing in the presence of urea is developed to prepare porous Co3O4 as anode material for lithium-ion batteries. The self-assembly cobalt hydrotalcite-like compounds (Co-HLC) is firstly synthesized through refluxing the mixture of cobaltous nitrate and urea. After pyrolysis, the flower-like morphology of Co-HLC is successfully maintained in the final product of Co3O4. The ordered two-dimensional Co3O4 nanosheets provide good contact with electrolyte and stable porous structure during lithiation/delithiation. Co3O4-120 synthesized under refluxing temperature of 120 °C shows the initial charge capacities of 722 and 741 mAh g−1 at the 2nd and 100th cycle under 100 mA g−1. Moreover, Co3O4-120 as electrode for a supercapacitor presents excellent capacitance, 167 F g−1 after 3000 cycles at 1 A g−1. Under 5, 10 and 20 A g−1, Co3O4-120 electrode delivers 128, 104 and 90 F g−1, respectively. The porous structure in Co3O4 with enhanced electrochemical performance indicates low temperature refluxing preparation is an applicable and energy-saved method to synthesize transitional metal oxide with tunable crystal morphologies.",
keywords = "anode materials, electrochemical performance, hydrotalcite-like compounds, lithium-ion batteries, metal oxide, refluxing",
author = "Zhongpei Lu and Jingjing Ding and Xuehong Lin and Yang Liu and Haitao Ye and Gang Yang and Fan Yin and Bo Yan",
note = "{\circledC} 2016, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/",
year = "2017",
month = "3",
doi = "10.1016/j.powtec.2016.12.081",
language = "English",
volume = "309",
pages = "22–30",
journal = "Powder Technology",
issn = "0032-5910",
publisher = "Elsevier",

}

Low-temperature synthesis of two-dimensional nanostructured Co3O4 and improved electrochemical properties for lithium-ion batteries. / Lu, Zhongpei; Ding, Jingjing; Lin, Xuehong; Liu, Yang; Ye, Haitao; Yang, Gang; Yin, Fan; Yan, Bo.

In: Powder Technology, Vol. 309, 03.2017, p. 22–30.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Low-temperature synthesis of two-dimensional nanostructured Co3O4 and improved electrochemical properties for lithium-ion batteries

AU - Lu, Zhongpei

AU - Ding, Jingjing

AU - Lin, Xuehong

AU - Liu, Yang

AU - Ye, Haitao

AU - Yang, Gang

AU - Yin, Fan

AU - Yan, Bo

N1 - © 2016, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

PY - 2017/3

Y1 - 2017/3

N2 - Urea as a cheap reagent is very useful in preparation two-dimensional metal oxides with tunable crystal morphologies, while refluxing method is a simple route to control the decomposition of urea. Here, a low temperature refluxing in the presence of urea is developed to prepare porous Co3O4 as anode material for lithium-ion batteries. The self-assembly cobalt hydrotalcite-like compounds (Co-HLC) is firstly synthesized through refluxing the mixture of cobaltous nitrate and urea. After pyrolysis, the flower-like morphology of Co-HLC is successfully maintained in the final product of Co3O4. The ordered two-dimensional Co3O4 nanosheets provide good contact with electrolyte and stable porous structure during lithiation/delithiation. Co3O4-120 synthesized under refluxing temperature of 120 °C shows the initial charge capacities of 722 and 741 mAh g−1 at the 2nd and 100th cycle under 100 mA g−1. Moreover, Co3O4-120 as electrode for a supercapacitor presents excellent capacitance, 167 F g−1 after 3000 cycles at 1 A g−1. Under 5, 10 and 20 A g−1, Co3O4-120 electrode delivers 128, 104 and 90 F g−1, respectively. The porous structure in Co3O4 with enhanced electrochemical performance indicates low temperature refluxing preparation is an applicable and energy-saved method to synthesize transitional metal oxide with tunable crystal morphologies.

AB - Urea as a cheap reagent is very useful in preparation two-dimensional metal oxides with tunable crystal morphologies, while refluxing method is a simple route to control the decomposition of urea. Here, a low temperature refluxing in the presence of urea is developed to prepare porous Co3O4 as anode material for lithium-ion batteries. The self-assembly cobalt hydrotalcite-like compounds (Co-HLC) is firstly synthesized through refluxing the mixture of cobaltous nitrate and urea. After pyrolysis, the flower-like morphology of Co-HLC is successfully maintained in the final product of Co3O4. The ordered two-dimensional Co3O4 nanosheets provide good contact with electrolyte and stable porous structure during lithiation/delithiation. Co3O4-120 synthesized under refluxing temperature of 120 °C shows the initial charge capacities of 722 and 741 mAh g−1 at the 2nd and 100th cycle under 100 mA g−1. Moreover, Co3O4-120 as electrode for a supercapacitor presents excellent capacitance, 167 F g−1 after 3000 cycles at 1 A g−1. Under 5, 10 and 20 A g−1, Co3O4-120 electrode delivers 128, 104 and 90 F g−1, respectively. The porous structure in Co3O4 with enhanced electrochemical performance indicates low temperature refluxing preparation is an applicable and energy-saved method to synthesize transitional metal oxide with tunable crystal morphologies.

KW - anode materials

KW - electrochemical performance

KW - hydrotalcite-like compounds

KW - lithium-ion batteries

KW - metal oxide

KW - refluxing

UR - http://www.scopus.com/inward/record.url?scp=85008233205&partnerID=8YFLogxK

U2 - 10.1016/j.powtec.2016.12.081

DO - 10.1016/j.powtec.2016.12.081

M3 - Article

VL - 309

SP - 22

EP - 30

JO - Powder Technology

JF - Powder Technology

SN - 0032-5910

ER -