Effect of temperature on the oxygen reduction reaction at nitrogen-doped carbon nanotubes for fuel cell cathode

W. Y. Wong, Wan Ramli Wan Daud, Abu Bakar Mohamad, Kee Shyuan Loh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

One of the technical challenges in the area of fuel cell technology in this century is related to cost reduction on the fuel cell components especially the electrocatalysts. The doping of nitrogen as the n-type dopant have been shown to exhibit catalytic activity towards ORR and can be a good alternative to the precious metal with proper modifications. In order to optimize the efficiency of fuel cell, intermediate cell temperature are usually used. In this study, the effects of the temperatures towards ORR were studied over the temperature range of 298-343 K in 0.5 M H2SO4 on the metal-free nitrogen-doped carbon nanotubes (NCNT) using a thin-film rotating-ring disk electrode (RRDE). The NCNT catalysts were synthesised via chemical vapour deposition with ethylenediamine and iron phthalocyanine and post-treatment process was carried out prior to the analysis. The results showed that the ORR activity on NCNT has achieved its optimum value at 50 °C, beyond which the activity was decreased. Therefore, NCNT should be modified by compositing with other metal or non-metal to improve its activity at higher temperature.

Original languageEnglish
Title of host publication20th World Hydrogen Energy Conference, WHEC 2014
PublisherCommittee of WHEC2014
Pages468-473
Number of pages6
Volume1
ISBN (Print)9780000000002
Publication statusPublished - 2014
Event20th World Hydrogen Energy Conference, WHEC 2014 - Gwangju
Duration: 15 Jun 201420 Jun 2014

Other

Other20th World Hydrogen Energy Conference, WHEC 2014
CityGwangju
Period15/6/1420/6/14

Fingerprint

Fuel cells
Carbon nanotubes
Cathodes
Nitrogen
Oxygen
Temperature
Doping (additives)
Electrocatalysts
Precious metals
Cost reduction
Metals
Chemical vapor deposition
Catalyst activity
Iron
Thin films
Electrodes
Catalysts

Keywords

  • Metal-free catalysts
  • NCNT
  • ORR
  • PEMFC
  • Temperature

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology

Cite this

Wong, W. Y., Wan Daud, W. R., Mohamad, A. B., & Loh, K. S. (2014). Effect of temperature on the oxygen reduction reaction at nitrogen-doped carbon nanotubes for fuel cell cathode. In 20th World Hydrogen Energy Conference, WHEC 2014 (Vol. 1, pp. 468-473). Committee of WHEC2014.

Effect of temperature on the oxygen reduction reaction at nitrogen-doped carbon nanotubes for fuel cell cathode. / Wong, W. Y.; Wan Daud, Wan Ramli; Mohamad, Abu Bakar; Loh, Kee Shyuan.

20th World Hydrogen Energy Conference, WHEC 2014. Vol. 1 Committee of WHEC2014, 2014. p. 468-473.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wong, WY, Wan Daud, WR, Mohamad, AB & Loh, KS 2014, Effect of temperature on the oxygen reduction reaction at nitrogen-doped carbon nanotubes for fuel cell cathode. in 20th World Hydrogen Energy Conference, WHEC 2014. vol. 1, Committee of WHEC2014, pp. 468-473, 20th World Hydrogen Energy Conference, WHEC 2014, Gwangju, 15/6/14.
Wong WY, Wan Daud WR, Mohamad AB, Loh KS. Effect of temperature on the oxygen reduction reaction at nitrogen-doped carbon nanotubes for fuel cell cathode. In 20th World Hydrogen Energy Conference, WHEC 2014. Vol. 1. Committee of WHEC2014. 2014. p. 468-473
Wong, W. Y. ; Wan Daud, Wan Ramli ; Mohamad, Abu Bakar ; Loh, Kee Shyuan. / Effect of temperature on the oxygen reduction reaction at nitrogen-doped carbon nanotubes for fuel cell cathode. 20th World Hydrogen Energy Conference, WHEC 2014. Vol. 1 Committee of WHEC2014, 2014. pp. 468-473
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N2 - One of the technical challenges in the area of fuel cell technology in this century is related to cost reduction on the fuel cell components especially the electrocatalysts. The doping of nitrogen as the n-type dopant have been shown to exhibit catalytic activity towards ORR and can be a good alternative to the precious metal with proper modifications. In order to optimize the efficiency of fuel cell, intermediate cell temperature are usually used. In this study, the effects of the temperatures towards ORR were studied over the temperature range of 298-343 K in 0.5 M H2SO4 on the metal-free nitrogen-doped carbon nanotubes (NCNT) using a thin-film rotating-ring disk electrode (RRDE). The NCNT catalysts were synthesised via chemical vapour deposition with ethylenediamine and iron phthalocyanine and post-treatment process was carried out prior to the analysis. The results showed that the ORR activity on NCNT has achieved its optimum value at 50 °C, beyond which the activity was decreased. Therefore, NCNT should be modified by compositing with other metal or non-metal to improve its activity at higher temperature.

AB - One of the technical challenges in the area of fuel cell technology in this century is related to cost reduction on the fuel cell components especially the electrocatalysts. The doping of nitrogen as the n-type dopant have been shown to exhibit catalytic activity towards ORR and can be a good alternative to the precious metal with proper modifications. In order to optimize the efficiency of fuel cell, intermediate cell temperature are usually used. In this study, the effects of the temperatures towards ORR were studied over the temperature range of 298-343 K in 0.5 M H2SO4 on the metal-free nitrogen-doped carbon nanotubes (NCNT) using a thin-film rotating-ring disk electrode (RRDE). The NCNT catalysts were synthesised via chemical vapour deposition with ethylenediamine and iron phthalocyanine and post-treatment process was carried out prior to the analysis. The results showed that the ORR activity on NCNT has achieved its optimum value at 50 °C, beyond which the activity was decreased. Therefore, NCNT should be modified by compositing with other metal or non-metal to improve its activity at higher temperature.

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