Composite membrane containing graphene oxide in sulfonated polyether ether ketone in microbial fuel cell applications

Jun Xing Leong, Wan Ramli Wan Daud, Mostafa Ghasemi, Azizan Ahmad, Manal Ismail, Kien Ben Liew

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

In this study, a single layer graphene oxide is successfully synthesized and used as a nano-filler in a self-fabricated sulfonated polyether ether ketone (SPEEK) to make a composite proton exchange membrane, graphene oxide/SPEEK (GO-SPEEK). The properties of GO-SPEEK, Nafion<sup>®</sup> 117 and SPEEK are then compared to ascertain their selectivity to proton transport compared to both water and oxygen. GO-SPEEK was found to have the highest selectivity with a water uptake of 85.4%, proton conductivity of 1.48×10<sup>-3</sup>S cm<sup>-1</sup> and oxygen diffusion coefficient of 1.154×10<sup>-6</sup> cm<sup>2</sup> s<sup>-1</sup>. During tests in Microbial Fuel Cells (MFCs), the MFC system with Nafion<sup>®</sup> 117 membrane produces the highest maximum power density (1013mW m<sup>-2</sup>) followed by the MFCs with GO-SPEEK (902mW m<sup>-2</sup>) and SPEEK (812mW m<sup>-2</sup>) membranes. On the other hand, the MFC with GO-SPEEK membrane produces the highest coulombic efficiency (16.88%). The high efficiency and comparable maximum power density which is produced by the MFC with GO-SPEEK membrane, shows that GO-SPEEK membrane is a promising alternative membrane to replace the expensive Nafion<sup>®</sup> 117 as a separator in the MFC.

Original languageEnglish
JournalInternational Journal of Hydrogen Energy
DOIs
Publication statusAccepted/In press - 9 Jan 2015

Fingerprint

Microbial fuel cells
Polyether ether ketones
Composite membranes
ketones
Graphene
fuel cells
ethers
graphene
membranes
Oxides
composite materials
oxides
Membranes
protons
radiant flux density
Protons
selectivity
Oxygen
Proton conductivity
oxygen

Keywords

  • Coulombic efficiency
  • Graphene oxide
  • Microbial fuel cell
  • Power density
  • Sulfonated polyether ether ketone

ASJC Scopus subject areas

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

Cite this

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title = "Composite membrane containing graphene oxide in sulfonated polyether ether ketone in microbial fuel cell applications",
abstract = "In this study, a single layer graphene oxide is successfully synthesized and used as a nano-filler in a self-fabricated sulfonated polyether ether ketone (SPEEK) to make a composite proton exchange membrane, graphene oxide/SPEEK (GO-SPEEK). The properties of GO-SPEEK, Nafion{\circledR} 117 and SPEEK are then compared to ascertain their selectivity to proton transport compared to both water and oxygen. GO-SPEEK was found to have the highest selectivity with a water uptake of 85.4{\%}, proton conductivity of 1.48×10-3S cm-1 and oxygen diffusion coefficient of 1.154×10-6 cm2 s-1. During tests in Microbial Fuel Cells (MFCs), the MFC system with Nafion{\circledR} 117 membrane produces the highest maximum power density (1013mW m-2) followed by the MFCs with GO-SPEEK (902mW m-2) and SPEEK (812mW m-2) membranes. On the other hand, the MFC with GO-SPEEK membrane produces the highest coulombic efficiency (16.88{\%}). The high efficiency and comparable maximum power density which is produced by the MFC with GO-SPEEK membrane, shows that GO-SPEEK membrane is a promising alternative membrane to replace the expensive Nafion{\circledR} 117 as a separator in the MFC.",
keywords = "Coulombic efficiency, Graphene oxide, Microbial fuel cell, Power density, Sulfonated polyether ether ketone",
author = "Leong, {Jun Xing} and Daud, {Wan Ramli Wan} and Mostafa Ghasemi and Azizan Ahmad and Manal Ismail and Liew, {Kien Ben}",
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T1 - Composite membrane containing graphene oxide in sulfonated polyether ether ketone in microbial fuel cell applications

AU - Leong, Jun Xing

AU - Daud, Wan Ramli Wan

AU - Ghasemi, Mostafa

AU - Ahmad, Azizan

AU - Ismail, Manal

AU - Liew, Kien Ben

PY - 2015/1/9

Y1 - 2015/1/9

N2 - In this study, a single layer graphene oxide is successfully synthesized and used as a nano-filler in a self-fabricated sulfonated polyether ether ketone (SPEEK) to make a composite proton exchange membrane, graphene oxide/SPEEK (GO-SPEEK). The properties of GO-SPEEK, Nafion® 117 and SPEEK are then compared to ascertain their selectivity to proton transport compared to both water and oxygen. GO-SPEEK was found to have the highest selectivity with a water uptake of 85.4%, proton conductivity of 1.48×10-3S cm-1 and oxygen diffusion coefficient of 1.154×10-6 cm2 s-1. During tests in Microbial Fuel Cells (MFCs), the MFC system with Nafion® 117 membrane produces the highest maximum power density (1013mW m-2) followed by the MFCs with GO-SPEEK (902mW m-2) and SPEEK (812mW m-2) membranes. On the other hand, the MFC with GO-SPEEK membrane produces the highest coulombic efficiency (16.88%). The high efficiency and comparable maximum power density which is produced by the MFC with GO-SPEEK membrane, shows that GO-SPEEK membrane is a promising alternative membrane to replace the expensive Nafion® 117 as a separator in the MFC.

AB - In this study, a single layer graphene oxide is successfully synthesized and used as a nano-filler in a self-fabricated sulfonated polyether ether ketone (SPEEK) to make a composite proton exchange membrane, graphene oxide/SPEEK (GO-SPEEK). The properties of GO-SPEEK, Nafion® 117 and SPEEK are then compared to ascertain their selectivity to proton transport compared to both water and oxygen. GO-SPEEK was found to have the highest selectivity with a water uptake of 85.4%, proton conductivity of 1.48×10-3S cm-1 and oxygen diffusion coefficient of 1.154×10-6 cm2 s-1. During tests in Microbial Fuel Cells (MFCs), the MFC system with Nafion® 117 membrane produces the highest maximum power density (1013mW m-2) followed by the MFCs with GO-SPEEK (902mW m-2) and SPEEK (812mW m-2) membranes. On the other hand, the MFC with GO-SPEEK membrane produces the highest coulombic efficiency (16.88%). The high efficiency and comparable maximum power density which is produced by the MFC with GO-SPEEK membrane, shows that GO-SPEEK membrane is a promising alternative membrane to replace the expensive Nafion® 117 as a separator in the MFC.

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