Non-Pt catalyst as oxygen reduction reaction in microbial fuel cells: A review

Kien Ben Liew, Wan Ramli Wan Daud, Mostafa Ghasemi, Jun Xing Leong, Swee Su Lim, Manal Ismail

Research output: Contribution to journalArticle

147 Citations (Scopus)

Abstract

Oxygen Reduction Reactions (ORR) are one of the main factors of major potential loss in low temperature fuel cells, such as microbial fuel cells and proton exchange membrane fuel cells. Various studies in the past decade have focused on determining a method to reduce the over potential of ORR and to replace the conventional costly Pt catalyst in both types of fuel cells. This review outlines important classes of abiotic catalysts and biocatalysts as electrochemical oxygen reduction reaction catalysts in microbial fuel cells. It was shown that manganese oxide and metal macrocycle compounds are good candidates for Pt catalyst replacements due to their high catalytic activity. Moreover, nitrogen doped nanocarbon material and electroconductive polymers are proven to have electrocatalytic activity, but further optimization is required if they are to replace Pt catalysts. A more interesting alternative is the use of bacteria as a biocatalyst in biocathodes, where the ORR is facilitated by bacterial metabolism within the biofilm formed on the cathode. More fundamental work is needed to understand the factors affecting the performance of the biocathode in order to improve the performance of the microbial fuel cells.

Original languageEnglish
Pages (from-to)4870-4883
Number of pages14
JournalInternational Journal of Hydrogen Energy
Volume39
Issue number10
DOIs
Publication statusPublished - 26 Mar 2014

Fingerprint

Microbial fuel cells
fuel cells
catalysts
Catalysts
Oxygen
oxygen
Biocatalysts
Fuel cells
Manganese oxide
Biofilms
Proton exchange membrane fuel cells (PEMFC)
biofilms
Metabolism
metal compounds
manganese oxides
metabolism
Catalyst activity
Bacteria
Cathodes
bacteria

Keywords

  • Biocatalysts
  • Cathode
  • Microbial fuel cell
  • Non-Pt catalyst
  • Oxygen reduction reaction

ASJC Scopus subject areas

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

Cite this

Non-Pt catalyst as oxygen reduction reaction in microbial fuel cells : A review. / Ben Liew, Kien; Wan Daud, Wan Ramli; Ghasemi, Mostafa; Leong, Jun Xing; Lim, Swee Su; Ismail, Manal.

In: International Journal of Hydrogen Energy, Vol. 39, No. 10, 26.03.2014, p. 4870-4883.

Research output: Contribution to journalArticle

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