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Microwave homogeneous synthesis of porous nanowire Co3O4 arrays with high capacity and rate capability for lithium ion batteries

Journal Article


Abstract


  • In this paper, an efficient microwave-assisted homogeneous synthesis approach by urea hydrolysis is

    used to synthesize cobalt-basic-carbonate compounds. The dimensions and morphology of the synthesized

    precursor compounds are tailored by changes in the incorporated anions (CO3

    2− and OH−) under

    different conditions of temperature and time under microwave irradiation. The wire-like cobalt-basiccarbonate

    compound self-assembles into one-dimensional porous arrays of Co3O4 nanowires constructed

    of interconnected Co3O4 nanocrystals along the [1 1 0] axis after thermal decomposition at 350 ◦C. The

    textural characteristics of the Co3O4 products have strong positive effects on their electrochemical properties

    as electrode materials in lithium-ion batteries. The obtained porous nanowire Co3O4 arrays exhibit

    excellent capacity retention and rate capability at higher current rates, and their reversible capacity of

    600mAhg−1 can be maintained after 100 cycles at the high current rate of 400mAg−1.

Authors


Publication Date


  • 2011

Citation


  • Wang, J., Niu, B., Du, G., Zeng, R., Chen, Z., Guo, Z. & Dou, S. Xue. (2011). Microwave homogeneous synthesis of porous nanowire Co3O4 arrays with high capacity and rate capability for lithium ion batteries. Materials Chemistry and Physics, 126 (3), 747-754.

Scopus Eid


  • 2-s2.0-79951681577

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/4301

Has Global Citation Frequency


Number Of Pages


  • 7

Start Page


  • 747

End Page


  • 754

Volume


  • 126

Issue


  • 3

Place Of Publication


  • Switzerland

Abstract


  • In this paper, an efficient microwave-assisted homogeneous synthesis approach by urea hydrolysis is

    used to synthesize cobalt-basic-carbonate compounds. The dimensions and morphology of the synthesized

    precursor compounds are tailored by changes in the incorporated anions (CO3

    2− and OH−) under

    different conditions of temperature and time under microwave irradiation. The wire-like cobalt-basiccarbonate

    compound self-assembles into one-dimensional porous arrays of Co3O4 nanowires constructed

    of interconnected Co3O4 nanocrystals along the [1 1 0] axis after thermal decomposition at 350 ◦C. The

    textural characteristics of the Co3O4 products have strong positive effects on their electrochemical properties

    as electrode materials in lithium-ion batteries. The obtained porous nanowire Co3O4 arrays exhibit

    excellent capacity retention and rate capability at higher current rates, and their reversible capacity of

    600mAhg−1 can be maintained after 100 cycles at the high current rate of 400mAg−1.

Authors


Publication Date


  • 2011

Citation


  • Wang, J., Niu, B., Du, G., Zeng, R., Chen, Z., Guo, Z. & Dou, S. Xue. (2011). Microwave homogeneous synthesis of porous nanowire Co3O4 arrays with high capacity and rate capability for lithium ion batteries. Materials Chemistry and Physics, 126 (3), 747-754.

Scopus Eid


  • 2-s2.0-79951681577

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/4301

Has Global Citation Frequency


Number Of Pages


  • 7

Start Page


  • 747

End Page


  • 754

Volume


  • 126

Issue


  • 3

Place Of Publication


  • Switzerland