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Rapid synthesis of Li4Ti5O12/graphene composite with superior rate capability by a microwave-assisted hydrothermal method

Journal Article


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Abstract


  • Li4Ti5O12 microspheres composed of nanoflakes wrapped in graphene nanosheets have been synthesized by an advanced microwave-hydrothermal (MW-HT) method for the preparation following by an annealing step. Microwave-assisted synthesis processes are appealing, as they can rapidly synthesize materials with a high degree of control of particle size and morphology at low cost. The resultant composite reveals a unique loose structure which could avoid the restacking of graphene sheets and offer rapid lithium ion diffusion paths. Therefore the Li4Ti5O12/graphene electrode has highly desirable properties: a specific capacity approaching the theoretical value, stable cycling, and exceptional rate capability. The composite also can be a good indicator of the remained charge and discharge capacity since it presents a curved charge and discharge line instead of a stable plateau.

UOW Authors


  •   Shi, Yi (external author)
  •   Gao, Jie (external author)
  •   Abruna, Hector D. (external author)
  •   Liu, Hua
  •   Li, Hui Jun.
  •   Wang, Jiazhao
  •   Wu, Yu-Ping (external author)

Publication Date


  • 2014

Citation


  • Shi, Y., Gao, J., Abruna, H. D., Liu, H., Li, H., Wang, J. & Wu, Y. (2014). Rapid synthesis of Li4Ti5O12/graphene composite with superior rate capability by a microwave-assisted hydrothermal method. Nano Energy, 8 297-304.

Scopus Eid


  • 2-s2.0-84903950875

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2148&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1147

Has Global Citation Frequency


Number Of Pages


  • 7

Start Page


  • 297

End Page


  • 304

Volume


  • 8

Place Of Publication


  • Netherlands

Abstract


  • Li4Ti5O12 microspheres composed of nanoflakes wrapped in graphene nanosheets have been synthesized by an advanced microwave-hydrothermal (MW-HT) method for the preparation following by an annealing step. Microwave-assisted synthesis processes are appealing, as they can rapidly synthesize materials with a high degree of control of particle size and morphology at low cost. The resultant composite reveals a unique loose structure which could avoid the restacking of graphene sheets and offer rapid lithium ion diffusion paths. Therefore the Li4Ti5O12/graphene electrode has highly desirable properties: a specific capacity approaching the theoretical value, stable cycling, and exceptional rate capability. The composite also can be a good indicator of the remained charge and discharge capacity since it presents a curved charge and discharge line instead of a stable plateau.

UOW Authors


  •   Shi, Yi (external author)
  •   Gao, Jie (external author)
  •   Abruna, Hector D. (external author)
  •   Liu, Hua
  •   Li, Hui Jun.
  •   Wang, Jiazhao
  •   Wu, Yu-Ping (external author)

Publication Date


  • 2014

Citation


  • Shi, Y., Gao, J., Abruna, H. D., Liu, H., Li, H., Wang, J. & Wu, Y. (2014). Rapid synthesis of Li4Ti5O12/graphene composite with superior rate capability by a microwave-assisted hydrothermal method. Nano Energy, 8 297-304.

Scopus Eid


  • 2-s2.0-84903950875

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2148&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1147

Has Global Citation Frequency


Number Of Pages


  • 7

Start Page


  • 297

End Page


  • 304

Volume


  • 8

Place Of Publication


  • Netherlands