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A chemically modified graphene oxide wrapped porous hematite nano-architecture as a high rate lithium-ion battery anode material

Journal Article


Abstract


  • Successful fabrication of nanoporous metal oxides with carbonaceous nanomaterials can enhance the conductivity of electrodes as well as advance their electrochemical activity to overcome the stress induced during continuous charge-discharge cycling, and this is an effective way to harness their excellent reversible theoretical capacity. Nanoporous hematite (α-Fe2O3) nanorods have been prepared through an advanced spray precipitation method and nanofabricated with reduced graphene oxide (rGO) sheets by simply mixing solutions. This approach helps to introduce a continuous conductive network in between the nanorods to enhance ion interactions, giving the composite a promising electrochemical response as a negative electrode for the lithium-ion battery (LIB). The nanocomposites delivered an outstanding reversible capacity of 1330 mA h g-1 at 100 mA g-1 for 100 cycles and showed excellent rate retention during cycling at different current densities over long cycle numbers, highlighting the potential of this material with its specially designed nano-architecture as an anode material for high energy LIBs for electric vehicles. Along with the overwhelming electrochemical performance of chemically modified graphene-oxide-wrapped hematite porous nanorods (α-Fe2O3/rGO), the abundance of the hematite source, and the advanced and environmentally friendly synthesis approach show the potential for large-scale preparation of such electrode materials for real world application.

Publication Date


  • 2016

Citation


  • Subramaniyam, C. M., Islam, M., Akhter, T., Cardillo, D., Konstantinov, K., Liu, H. Kun. & Dou, S. Xue. (2016). A chemically modified graphene oxide wrapped porous hematite nano-architecture as a high rate lithium-ion battery anode material. RSC Advances: an international journal to further the chemical sciences, 6 (86), 82698-82706.

Scopus Eid


  • 2-s2.0-84987629330

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2247

Number Of Pages


  • 8

Start Page


  • 82698

End Page


  • 82706

Volume


  • 6

Issue


  • 86

Abstract


  • Successful fabrication of nanoporous metal oxides with carbonaceous nanomaterials can enhance the conductivity of electrodes as well as advance their electrochemical activity to overcome the stress induced during continuous charge-discharge cycling, and this is an effective way to harness their excellent reversible theoretical capacity. Nanoporous hematite (α-Fe2O3) nanorods have been prepared through an advanced spray precipitation method and nanofabricated with reduced graphene oxide (rGO) sheets by simply mixing solutions. This approach helps to introduce a continuous conductive network in between the nanorods to enhance ion interactions, giving the composite a promising electrochemical response as a negative electrode for the lithium-ion battery (LIB). The nanocomposites delivered an outstanding reversible capacity of 1330 mA h g-1 at 100 mA g-1 for 100 cycles and showed excellent rate retention during cycling at different current densities over long cycle numbers, highlighting the potential of this material with its specially designed nano-architecture as an anode material for high energy LIBs for electric vehicles. Along with the overwhelming electrochemical performance of chemically modified graphene-oxide-wrapped hematite porous nanorods (α-Fe2O3/rGO), the abundance of the hematite source, and the advanced and environmentally friendly synthesis approach show the potential for large-scale preparation of such electrode materials for real world application.

Publication Date


  • 2016

Citation


  • Subramaniyam, C. M., Islam, M., Akhter, T., Cardillo, D., Konstantinov, K., Liu, H. Kun. & Dou, S. Xue. (2016). A chemically modified graphene oxide wrapped porous hematite nano-architecture as a high rate lithium-ion battery anode material. RSC Advances: an international journal to further the chemical sciences, 6 (86), 82698-82706.

Scopus Eid


  • 2-s2.0-84987629330

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2247

Number Of Pages


  • 8

Start Page


  • 82698

End Page


  • 82706

Volume


  • 6

Issue


  • 86