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Electrochemically synthesized polypyrrole/graphene composite film for lithium batteries

Journal Article


Abstract


  • A polypyrrole/reduced graphene oxide (PPy/r-GO) composite film is prepared by inducing electrochemical reduction of graphene oxide incorporated into PPy as the dopant. This film has a wrinkled surface morphology with a porous structure as revealed by scanning electron microscopy. Its porous structure is attributed to the physical nature of the GO sheets, providing a templating effect during PPy deposition. This PPy/r-GO composite is characterized using in-situ UV–visible spectroelectrochemistry as well as Raman and Fourier-transform IR spectroscopy. The PPy/r-GO material shows greatly improved electrochemical properties, i.e., a high rate capability and excellent cycling stability when used as a cathode material in a lithium ion battery. It also delivers a large reversible capacity when used as an anode material, and this is mainly attributed to the reduced graphene oxide (r-GO) component.

Publication Date


  • 2012

Citation


  • Yang, Y., Wang, C., Yue, B., Gambhir, S., Too, C. O. & Wallace, G. G. (2012). Electrochemically synthesized polypyrrole/graphene composite film for lithium batteries. Advanced Energy Materials, 2 (2), 266-272.

Scopus Eid


  • 2-s2.0-84863711129

Ro Metadata Url


  • http://ro.uow.edu.au/scipapers/4673

Has Global Citation Frequency


Number Of Pages


  • 6

Start Page


  • 266

End Page


  • 272

Volume


  • 2

Issue


  • 2

Place Of Publication


  • Germany

Abstract


  • A polypyrrole/reduced graphene oxide (PPy/r-GO) composite film is prepared by inducing electrochemical reduction of graphene oxide incorporated into PPy as the dopant. This film has a wrinkled surface morphology with a porous structure as revealed by scanning electron microscopy. Its porous structure is attributed to the physical nature of the GO sheets, providing a templating effect during PPy deposition. This PPy/r-GO composite is characterized using in-situ UV–visible spectroelectrochemistry as well as Raman and Fourier-transform IR spectroscopy. The PPy/r-GO material shows greatly improved electrochemical properties, i.e., a high rate capability and excellent cycling stability when used as a cathode material in a lithium ion battery. It also delivers a large reversible capacity when used as an anode material, and this is mainly attributed to the reduced graphene oxide (r-GO) component.

Publication Date


  • 2012

Citation


  • Yang, Y., Wang, C., Yue, B., Gambhir, S., Too, C. O. & Wallace, G. G. (2012). Electrochemically synthesized polypyrrole/graphene composite film for lithium batteries. Advanced Energy Materials, 2 (2), 266-272.

Scopus Eid


  • 2-s2.0-84863711129

Ro Metadata Url


  • http://ro.uow.edu.au/scipapers/4673

Has Global Citation Frequency


Number Of Pages


  • 6

Start Page


  • 266

End Page


  • 272

Volume


  • 2

Issue


  • 2

Place Of Publication


  • Germany