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Integrated high-efficiency Pt/carbon nanotube arrays for PEM fuel cells

Journal Article


Abstract


  • "A facile strategy to deposit Pt nanoparticles with various metal-loading densities on vertically aligned carbon nanotube (ACNT) arrays as electrocatalysts for proton exchange membrane (PEM) fuel cells is described. The deposition is achieved by electrostatic adsorption of the Pt precursor on the positively charged polyelectrolyte functionalized ACNT arrays and subsequent reduction by L-ascorbic acid. The application of the aligned electrocatalysts in fuel cells is realized by transferring from a quartz substrate to nafion membrane using a hot-press procedure to fabricate the membrane electrode assembly (MEA). It is shown that the MEA with vertically aligned structured electrocatalysts provides better Pt utilization than that with Pt on conventional carbon nanotubes or carbon black, resulting in higher fuel cell performance."

UOW Authors


  •   Zhang, Weimin (external author)
  •   Minett, Andrew I. (external author)
  •   Gao, Mei (external author)
  •   Zhao, Jie (external author)
  •   Razal, Joselito M. (external author)
  •   Wallace, Gordon
  •   Romeo, Anthony C. (external author)
  •   Chen, Jun

Publication Date


  • 2011

Citation


  • Zhang, W., Minett, A. I., Gao, M., Zhao, J., Razal, J. M., Wallace, G. G., Romeo, T. & Chen, J. (2011). Integrated high-efficiency Pt/carbon nanotube arrays for PEM fuel cells. Advanced Energy Materials, 1 (4), 671-677.

Scopus Eid


  • 2-s2.0-84863674603

Ro Metadata Url


  • http://ro.uow.edu.au/scipapers/3206

Has Global Citation Frequency


Number Of Pages


  • 6

Start Page


  • 671

End Page


  • 677

Volume


  • 1

Issue


  • 4

Place Of Publication


  • Germany

Abstract


  • "A facile strategy to deposit Pt nanoparticles with various metal-loading densities on vertically aligned carbon nanotube (ACNT) arrays as electrocatalysts for proton exchange membrane (PEM) fuel cells is described. The deposition is achieved by electrostatic adsorption of the Pt precursor on the positively charged polyelectrolyte functionalized ACNT arrays and subsequent reduction by L-ascorbic acid. The application of the aligned electrocatalysts in fuel cells is realized by transferring from a quartz substrate to nafion membrane using a hot-press procedure to fabricate the membrane electrode assembly (MEA). It is shown that the MEA with vertically aligned structured electrocatalysts provides better Pt utilization than that with Pt on conventional carbon nanotubes or carbon black, resulting in higher fuel cell performance."

UOW Authors


  •   Zhang, Weimin (external author)
  •   Minett, Andrew I. (external author)
  •   Gao, Mei (external author)
  •   Zhao, Jie (external author)
  •   Razal, Joselito M. (external author)
  •   Wallace, Gordon
  •   Romeo, Anthony C. (external author)
  •   Chen, Jun

Publication Date


  • 2011

Citation


  • Zhang, W., Minett, A. I., Gao, M., Zhao, J., Razal, J. M., Wallace, G. G., Romeo, T. & Chen, J. (2011). Integrated high-efficiency Pt/carbon nanotube arrays for PEM fuel cells. Advanced Energy Materials, 1 (4), 671-677.

Scopus Eid


  • 2-s2.0-84863674603

Ro Metadata Url


  • http://ro.uow.edu.au/scipapers/3206

Has Global Citation Frequency


Number Of Pages


  • 6

Start Page


  • 671

End Page


  • 677

Volume


  • 1

Issue


  • 4

Place Of Publication


  • Germany