Cell performance of polymer electrolyte fuel cell with urchin-like carbon supports

Juei Dong Lu, Ming-Chang Yang

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Urchin-like structured carbon comprising carbon nanotubes grown on Fe catalyst-seeded mesoporous carbon have shown promising results as catalyst supports for use in direct methanol fuel cells (DMFCs) and proton exchange membrane fuel cells (PEMFCs). The Fe catalyst is prepared on the mesoporous carbon by immersion process followed by a high temperature reduction. The growth of carbon nanotubes then progress, for a predetermined time, through the thermal decomposition of acetylene at 800 °C. The resulting structure, comprising intimately connected mesoporous carbon and carbon nanotubes, is shown to offer performance advantages as a catalytic support for DMFCs and PEMFCs. When the hot-pressing pressure is fixed 20 kg cm -2 to fabricate a membrane electrode assembly (MEA) with urchin-like carbon supports, the CNT growth time is found to be 60 min for a highest maximum power density in both DMFCs and PEMFCs. The maximum power densities are 43 and 79% higher than those with purely mesoporous carbon in DMFCs and PEMFCs, respectively. In a direct comparison with commercial E-TEK catalyst, the urchin-like catalyst shows higher maximum power densities, in DMFC and PEMFC, by approximately 17 and 31%, respectively.

Original languageEnglish
Pages (from-to)8519-8524
Number of pages6
JournalJournal of Power Sources
Volume196
Issue number20
DOIs
Publication statusPublished - 2011 Oct 15

Fingerprint

Direct methanol fuel cells (DMFC)
Electrolytes
fuel cells
Proton exchange membrane fuel cells (PEMFC)
Fuel cells
Polymers
Carbon
electrolytes
Carbon Nanotubes
carbon
polymers
cells
Carbon nanotubes
membranes
Catalysts
methyl alcohol
catalysts
carbon nanotubes
protons
radiant flux density

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Physical and Theoretical Chemistry

Cite this

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abstract = "Urchin-like structured carbon comprising carbon nanotubes grown on Fe catalyst-seeded mesoporous carbon have shown promising results as catalyst supports for use in direct methanol fuel cells (DMFCs) and proton exchange membrane fuel cells (PEMFCs). The Fe catalyst is prepared on the mesoporous carbon by immersion process followed by a high temperature reduction. The growth of carbon nanotubes then progress, for a predetermined time, through the thermal decomposition of acetylene at 800 °C. The resulting structure, comprising intimately connected mesoporous carbon and carbon nanotubes, is shown to offer performance advantages as a catalytic support for DMFCs and PEMFCs. When the hot-pressing pressure is fixed 20 kg cm -2 to fabricate a membrane electrode assembly (MEA) with urchin-like carbon supports, the CNT growth time is found to be 60 min for a highest maximum power density in both DMFCs and PEMFCs. The maximum power densities are 43 and 79{\%} higher than those with purely mesoporous carbon in DMFCs and PEMFCs, respectively. In a direct comparison with commercial E-TEK catalyst, the urchin-like catalyst shows higher maximum power densities, in DMFC and PEMFC, by approximately 17 and 31{\%}, respectively.",
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Cell performance of polymer electrolyte fuel cell with urchin-like carbon supports. / Lu, Juei Dong; Yang, Ming-Chang.

In: Journal of Power Sources, Vol. 196, No. 20, 15.10.2011, p. 8519-8524.

Research output: Contribution to journalArticle

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