Effect of two anodic materials and RuxMoySe z as a cathode catalyst on the performance of two singlw chamber microbial fuel cells

A. L. Vázquez-Larios, O. Solorza-Feria, R. G. De González-Huerta, M. T. Ponce-Noyola, J. Barrera-Cortés, N. Rinderknecht-Seijas, H. M. Poggi-Varaldo

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

The objectives of this work were to evaluate (i) the application of a bimetallic chalcogenide, RuxMoySez, as an oxygen reduction reaction (ORR) catalyst and (ii) the effect of the type of two anodic materials on the performance of two microbial fuel cells (MFCs). A single chamber MFC-T was built with a plexiglass cylinder, the two extreme circular faces were fitted with PEM-cathode assemblage, i.e., left and right faces. The anode consisted of 65 small triangular pieces of graphite filling the anodic chamber. A second MFC-C had a 'sandwich' arrangement anode-PEM-cathode. The cathodes were made of flexible carbon-cloth containing catalysts loading of 1mg/cm2 RuxMoySez or 0.5mg/cm 2 Pt. Power derived by cell T with cathode chalcogenide catalyst was 43% inferior to that of a similar cell with Pt although the cost of the first catalyst is significantly lower than that of Pt, i.e., 73% lower. Finally, application of graphite anode made of small triangular pieces significantly improved the performance of a MFC-T that used RuxMo ySez as a cathodic catalyst for ORR.

Original languageEnglish
Pages (from-to)163-170
Number of pages8
JournalJournal of New Materials for Electrochemical Systems
Volume16
Issue number3
DOIs
StatePublished - 2013
Externally publishedYes

Keywords

  • Anodic material
  • Carbon cloth
  • Chalcogenide
  • Graphite
  • Internal resistance
  • Microbial fuel cell
  • Parallel
  • Series

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