Analysis and Optimization of Operating Parameters of a Membrane-Electrode Assembly

Kee Shyuan Loh, Abu Bakar Mohamad, N. Harahap, Abdul Amir H. Kadhum, Wan Ramli Wan Daud

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Hot-pressing conditions for fabricating a membrane-electrode assembly (MEA) were optimized. The key parameters were time, temperature, and pressure, varying from 1 to 5min, 100 to 170°C, and 21 to 93kgcm-2, respectively. The MEAs were fabricated with 50cm2 active electrode area and their performance was investigated using a fuel cell test station. The most suitable hot-pressing time for MEA was 3min, the optimized pressure and temperature for MEA fabrication were 21kg·cm-2 and 130°C with 1.6A and 0.56V. At 100°C, the current and voltage of the produced MEAs were low due to the trapped liquid formed inside the electrode. However, at more than 150°C, the obstructed/distorted polytetrafluoroethylene (PTFE) will block the pores inside the gas diffusion layer (GDL) and cause a loss of performance of the fuel cell. Physical properties of the GDL were observed using scanning electron microsopy (SEM). The GDL exhibited a uniform pore distribution after application of hot-pressing. Hot-pressing conditions in terms of time, temperature, and pressure for fabricating a membrane-electrode assembly (MEA) were optimized. The MEA performance was investigated using a fuel cell test station. Physical properties of the gas diffusion layer were observed using scanning electron microscopy, indicating a uniform pore distribution after hot-pressing.

Original languageEnglish
Pages (from-to)439-444
Number of pages6
JournalChemical Engineering and Technology
Volume34
Issue number3
DOIs
Publication statusPublished - Mar 2011

Fingerprint

Hot pressing
Membranes
Diffusion in gases
Electrodes
Fuel cells
Physical properties
Polytetrafluoroethylene
Polytetrafluoroethylenes
Temperature
Scanning
Fabrication
Scanning electron microscopy
Electrons
Liquids
Electric potential

Keywords

  • Gas diffusion layer
  • Hot-pressing
  • Membrane electrode assembly

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)
  • Industrial and Manufacturing Engineering

Cite this

Analysis and Optimization of Operating Parameters of a Membrane-Electrode Assembly. / Loh, Kee Shyuan; Mohamad, Abu Bakar; Harahap, N.; Kadhum, Abdul Amir H.; Wan Daud, Wan Ramli.

In: Chemical Engineering and Technology, Vol. 34, No. 3, 03.2011, p. 439-444.

Research output: Contribution to journalArticle

Loh, Kee Shyuan ; Mohamad, Abu Bakar ; Harahap, N. ; Kadhum, Abdul Amir H. ; Wan Daud, Wan Ramli. / Analysis and Optimization of Operating Parameters of a Membrane-Electrode Assembly. In: Chemical Engineering and Technology. 2011 ; Vol. 34, No. 3. pp. 439-444.
@article{622d1cfc53424030a859c65229ea9e91,
title = "Analysis and Optimization of Operating Parameters of a Membrane-Electrode Assembly",
abstract = "Hot-pressing conditions for fabricating a membrane-electrode assembly (MEA) were optimized. The key parameters were time, temperature, and pressure, varying from 1 to 5min, 100 to 170°C, and 21 to 93kgcm-2, respectively. The MEAs were fabricated with 50cm2 active electrode area and their performance was investigated using a fuel cell test station. The most suitable hot-pressing time for MEA was 3min, the optimized pressure and temperature for MEA fabrication were 21kg·cm-2 and 130°C with 1.6A and 0.56V. At 100°C, the current and voltage of the produced MEAs were low due to the trapped liquid formed inside the electrode. However, at more than 150°C, the obstructed/distorted polytetrafluoroethylene (PTFE) will block the pores inside the gas diffusion layer (GDL) and cause a loss of performance of the fuel cell. Physical properties of the GDL were observed using scanning electron microsopy (SEM). The GDL exhibited a uniform pore distribution after application of hot-pressing. Hot-pressing conditions in terms of time, temperature, and pressure for fabricating a membrane-electrode assembly (MEA) were optimized. The MEA performance was investigated using a fuel cell test station. Physical properties of the gas diffusion layer were observed using scanning electron microscopy, indicating a uniform pore distribution after hot-pressing.",
keywords = "Gas diffusion layer, Hot-pressing, Membrane electrode assembly",
author = "Loh, {Kee Shyuan} and Mohamad, {Abu Bakar} and N. Harahap and Kadhum, {Abdul Amir H.} and {Wan Daud}, {Wan Ramli}",
year = "2011",
month = "3",
doi = "10.1002/ceat.201000348",
language = "English",
volume = "34",
pages = "439--444",
journal = "Chemical Engineering and Technology",
issn = "0930-7516",
publisher = "Wiley-VCH Verlag",
number = "3",

}

TY - JOUR

T1 - Analysis and Optimization of Operating Parameters of a Membrane-Electrode Assembly

AU - Loh, Kee Shyuan

AU - Mohamad, Abu Bakar

AU - Harahap, N.

AU - Kadhum, Abdul Amir H.

AU - Wan Daud, Wan Ramli

PY - 2011/3

Y1 - 2011/3

N2 - Hot-pressing conditions for fabricating a membrane-electrode assembly (MEA) were optimized. The key parameters were time, temperature, and pressure, varying from 1 to 5min, 100 to 170°C, and 21 to 93kgcm-2, respectively. The MEAs were fabricated with 50cm2 active electrode area and their performance was investigated using a fuel cell test station. The most suitable hot-pressing time for MEA was 3min, the optimized pressure and temperature for MEA fabrication were 21kg·cm-2 and 130°C with 1.6A and 0.56V. At 100°C, the current and voltage of the produced MEAs were low due to the trapped liquid formed inside the electrode. However, at more than 150°C, the obstructed/distorted polytetrafluoroethylene (PTFE) will block the pores inside the gas diffusion layer (GDL) and cause a loss of performance of the fuel cell. Physical properties of the GDL were observed using scanning electron microsopy (SEM). The GDL exhibited a uniform pore distribution after application of hot-pressing. Hot-pressing conditions in terms of time, temperature, and pressure for fabricating a membrane-electrode assembly (MEA) were optimized. The MEA performance was investigated using a fuel cell test station. Physical properties of the gas diffusion layer were observed using scanning electron microscopy, indicating a uniform pore distribution after hot-pressing.

AB - Hot-pressing conditions for fabricating a membrane-electrode assembly (MEA) were optimized. The key parameters were time, temperature, and pressure, varying from 1 to 5min, 100 to 170°C, and 21 to 93kgcm-2, respectively. The MEAs were fabricated with 50cm2 active electrode area and their performance was investigated using a fuel cell test station. The most suitable hot-pressing time for MEA was 3min, the optimized pressure and temperature for MEA fabrication were 21kg·cm-2 and 130°C with 1.6A and 0.56V. At 100°C, the current and voltage of the produced MEAs were low due to the trapped liquid formed inside the electrode. However, at more than 150°C, the obstructed/distorted polytetrafluoroethylene (PTFE) will block the pores inside the gas diffusion layer (GDL) and cause a loss of performance of the fuel cell. Physical properties of the GDL were observed using scanning electron microsopy (SEM). The GDL exhibited a uniform pore distribution after application of hot-pressing. Hot-pressing conditions in terms of time, temperature, and pressure for fabricating a membrane-electrode assembly (MEA) were optimized. The MEA performance was investigated using a fuel cell test station. Physical properties of the gas diffusion layer were observed using scanning electron microscopy, indicating a uniform pore distribution after hot-pressing.

KW - Gas diffusion layer

KW - Hot-pressing

KW - Membrane electrode assembly

UR - http://www.scopus.com/inward/record.url?scp=79952010089&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79952010089&partnerID=8YFLogxK

U2 - 10.1002/ceat.201000348

DO - 10.1002/ceat.201000348

M3 - Article

AN - SCOPUS:79952010089

VL - 34

SP - 439

EP - 444

JO - Chemical Engineering and Technology

JF - Chemical Engineering and Technology

SN - 0930-7516

IS - 3

ER -