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Synthesis and Characterization of CO-and H2S-Tolerant Electrocatalysts for PEM Fuel Cell. (Semi-Annual Technical Report, April 1, 2005-September 30, 2005).


DE2006862410

Publication Date 2005
Personal Author Ilias, S.
Page Count 14
Abstract The present state-of-art Proton Exchange Membrane Fuel Cell (PEMFC) technology is based on platinum (Pt) as a catalyst for both the fuel (anode) and air (cathode) electrodes. This catalyst is highly active but susceptible to poisoning by CO, which may be present in the H(sub 2)-fuel used or may be introduced during the fuel processing. Presence of trace amount of CO and H(sub 2)S in the H(sub 2)-fuel poisons the anode irreversibly and decreases the performance of the PEMFCs. In an effort to reduce the Pt-loading and improve the PEMFC performance, we propose to synthesize a number of Pt-based binary, ternary, and quaternary electrocatalysts using Ru, Mo, Ir, Ni, and Co as a substitute for Pt. By fine-tuning the metal loadings and compositions of candidate electrocatalysts, we plan to minimize the cost and optimize the catalyst activity and performance in PEMFC. The feasibility of the novel electrocatalysts will be demonstrated in the proposed effort with gas phase CO and H(sub 2)S concentrations typical of those found in reformed fuel gas with coal/natural gas/methanol feedstocks.
Keywords
  • Fuel cells
  • Electrocatalysts
  • Anodes
  • Electrodes
  • Carbon
  • Catalysts
  • Fuel gas
  • Posioning
  • Platinum
  • Performance
  • Synthesis
  • Testing
  • Processing
  • Development
  • Trace amounts
  • Proton exchange membrane fuel cells(PEMFC)
Source Agency
  • Technical Information Center Oak Ridge Tennessee
Corporate Authors North Carolina Agricultural and Technical State Univ., Greensboro.; Department of Energy, Washington, DC.
Supplemental Notes Sponsored by Department of Energy, Washington, DC.
Document Type Technical Report
NTIS Issue Number 200617
Synthesis and Characterization of CO-and H2S-Tolerant Electrocatalysts for PEM Fuel Cell. (Semi-Annual Technical Report, April 1, 2005-September 30, 2005).
Synthesis and Characterization of CO-and H2S-Tolerant Electrocatalysts for PEM Fuel Cell. (Semi-Annual Technical Report, April 1, 2005-September 30, 2005).
DE2006862410

  • Fuel cells
  • Electrocatalysts
  • Anodes
  • Electrodes
  • Carbon
  • Catalysts
  • Fuel gas
  • Posioning
  • Platinum
  • Performance
  • Synthesis
  • Testing
  • Processing
  • Development
  • Trace amounts
  • Proton exchange membrane fuel cells(PEMFC)
  • Technical Information Center Oak Ridge Tennessee
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