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High-power biofuel cell textiles from woven biscrolled carbon nanotube yarns

Journal Article


Abstract


  • Biofuel cells that generate electricity from glucose in blood are promising for powering implantable biomedical devices. Immobilizing interconnected enzyme and redox mediator in a highly conducting, porous electrode maximizes their interaction with the electrolyte and minimizes diffusion distances for fuel and oxidant, thereby enhancing power density. Here we report that our separator-free carbon nanotube yarn biofuel cells provide an open-circuit voltage of 0.70 V, and a maximum areal power density of 2.18 mW cm−2 that is three times higher than for previous carbon nanotube yarn biofuel cells. Biofuel cell operation in human serum provides high areal power output, as well as markedly increased lifetime (83% remained after 24 h), compared with previous unprotected biofuel cells. Our biscrolled yarn biofuel cells are woven into textiles having the mechanical robustness needed for implantation for glucose energy harvesting.

Authors


  •   Kwon, Cheong Hoon (external author)
  •   Lee, Sung-Ho (external author)
  •   Choi, Young-Bong (external author)
  •   Lee, Jae Ah. (external author)
  •   Kim, Shi Hyeong (external author)
  •   Kim, Hyug-Han (external author)
  •   Spinks, Geoff M.
  •   Wallace, Gordon G.
  •   Lima, Marcio Dias. (external author)
  •   Kozlov, Mikhail E. (external author)
  •   Baughman, Ray H. (external author)
  •   Kim, Seon Jeong. (external author)

Publication Date


  • 2014

Citation


  • Kwon, C. Hoon., Lee, S., Choi, Y., Lee, J. Ah., Kim, S. Hyeong., Kim, H., Spinks, G. M., Wallace, G. G., Lima, M. D., Kozlov, M. E., Baughman, R. H. & Kim, S. Jeong. (2014). High-power biofuel cell textiles from woven biscrolled carbon nanotube yarns. Nature Communications, 5 1-7.

Scopus Eid


  • 2-s2.0-84901912238

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1094

Has Global Citation Frequency


Number Of Pages


  • 6

Start Page


  • 1

End Page


  • 7

Volume


  • 5

Place Of Publication


  • United Kingdom

Abstract


  • Biofuel cells that generate electricity from glucose in blood are promising for powering implantable biomedical devices. Immobilizing interconnected enzyme and redox mediator in a highly conducting, porous electrode maximizes their interaction with the electrolyte and minimizes diffusion distances for fuel and oxidant, thereby enhancing power density. Here we report that our separator-free carbon nanotube yarn biofuel cells provide an open-circuit voltage of 0.70 V, and a maximum areal power density of 2.18 mW cm−2 that is three times higher than for previous carbon nanotube yarn biofuel cells. Biofuel cell operation in human serum provides high areal power output, as well as markedly increased lifetime (83% remained after 24 h), compared with previous unprotected biofuel cells. Our biscrolled yarn biofuel cells are woven into textiles having the mechanical robustness needed for implantation for glucose energy harvesting.

Authors


  •   Kwon, Cheong Hoon (external author)
  •   Lee, Sung-Ho (external author)
  •   Choi, Young-Bong (external author)
  •   Lee, Jae Ah. (external author)
  •   Kim, Shi Hyeong (external author)
  •   Kim, Hyug-Han (external author)
  •   Spinks, Geoff M.
  •   Wallace, Gordon G.
  •   Lima, Marcio Dias. (external author)
  •   Kozlov, Mikhail E. (external author)
  •   Baughman, Ray H. (external author)
  •   Kim, Seon Jeong. (external author)

Publication Date


  • 2014

Citation


  • Kwon, C. Hoon., Lee, S., Choi, Y., Lee, J. Ah., Kim, S. Hyeong., Kim, H., Spinks, G. M., Wallace, G. G., Lima, M. D., Kozlov, M. E., Baughman, R. H. & Kim, S. Jeong. (2014). High-power biofuel cell textiles from woven biscrolled carbon nanotube yarns. Nature Communications, 5 1-7.

Scopus Eid


  • 2-s2.0-84901912238

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1094

Has Global Citation Frequency


Number Of Pages


  • 6

Start Page


  • 1

End Page


  • 7

Volume


  • 5

Place Of Publication


  • United Kingdom