Performance of direct methanol fuel cell with a palladium-silica nanofibre/Nafion composite membrane

H. S. Thiam, Wan Ramli Wan Daud, Siti Kartom Kamarudin, Abu Bakar Mohamad, Abdul Amir H. Kadhum, Kee Shyuan Loh, Edy Herianto

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

Palladium-silica nanofibres (Pd-SiO2fibre) were adopted as an additive to Nafion recast membranes in order to reduce methanol crossover and improve the cell performance. The performance of a membrane electrode assembly (MEA) with fabricated composite membrane was evaluated through a passive air-breathing single cell direct methanol fuel cell (DMFC). The limiting crossover current density was measured to determine the methanol permeation in the DMFC. The effects of membrane annealing temperature and casting solvent of composite membrane on the cell performance were investigated and are discussed here. Compared to recast Nafion with the same thickness (150 μm), the Pd-SiO2fibre/Nafion composite membrane exhibited higher performance and lower methanol permeability. A maximum power density of 10.4 mW cm -2 was obtained with a 2 M methanol feed, outperforming the much thicker commercial Nafion 117 with a power density of 7.95 mW cm-2 under the same operating conditions. The experimental results showed that the Pd-SiO2fibre as inorganic fillers for Nafion could effectively reduce methanol crossover and improve the membrane performance in DMFC applications.

Original languageEnglish
Pages (from-to)718-726
Number of pages9
JournalEnergy Conversion and Management
Volume75
DOIs
Publication statusPublished - 2013

Fingerprint

Direct methanol fuel cells (DMFC)
Composite membranes
Nanofibers
Palladium
Methanol
Silica
Membranes
Permeation
Fillers
Casting
Current density
Annealing
Electrodes
Air
Temperature

Keywords

  • Annealing temperature
  • Casting solvent
  • Composite membrane
  • Direct methanol fuel cell
  • Palladium-silica nanofibre

ASJC Scopus subject areas

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

Cite this

Performance of direct methanol fuel cell with a palladium-silica nanofibre/Nafion composite membrane. / Thiam, H. S.; Wan Daud, Wan Ramli; Kamarudin, Siti Kartom; Mohamad, Abu Bakar; Kadhum, Abdul Amir H.; Loh, Kee Shyuan; Herianto, Edy.

In: Energy Conversion and Management, Vol. 75, 2013, p. 718-726.

Research output: Contribution to journalArticle

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AU - Thiam, H. S.

AU - Wan Daud, Wan Ramli

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AU - Mohamad, Abu Bakar

AU - Kadhum, Abdul Amir H.

AU - Loh, Kee Shyuan

AU - Herianto, Edy

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