Development of Carbon and Sulphur Tolerant Anodes of Solid Oxide Fuel Cells

Abstract

GDC-impregnated Ni/GDC anodes show the significant enhancement of the sulfur-tolerance of the anodes. However, the microstructure of GDC-impregnated Ni/GDC anodes still changes significantly in H2S-H2, indicating that GDC nanoparticles may not be able to completely inhibit the poisoning effect of sulfur on Ni/GDC anodes under present conditions studied. Co-impregnation of Pd-CeO2 was found to be most effective to enhance the activity of the Ni/GDC anodes for the hydrogen oxidation reaction in H2S-H2 and the polarization performance is stable under the condition of 100 ppm H2S-H2 and 200 mAcm-2 at 800oc for 50 hrs. Most important, the SEM results indicate that the impregnated Pd-CeO2 nanoparticles are effective to retard the poisoning effect of sulfur on the microstructure of Ni/GDC anodes, as compared the inhibiting effect of impregnation of Pd or GDC nanoparticles separately.

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Document Details

Document Type
Technical Report
Publication Date
Jan 14, 2010
Accession Number
ADA513573

Entities

People

  • San P. Jiang

Organizations

  • Nanyang Technological University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Alcohols
  • Cells
  • Chemical Reaction Properties
  • Chemical Reactions
  • Chemistry
  • Composite Materials
  • Decomposition
  • Electrical Conductivity
  • Fuel Cells
  • Hydrocarbon Fuels
  • Materials
  • Materials Science
  • Measurement
  • Microstructure
  • Nanoparticles
  • Oxidation
  • Solid Oxide Fuel Cells

Fields of Study

  • Materials science

Readers

  • Aviation Safety and Air Traffic Management
  • Electrochemical Engineering/ Fuel Cell Technologies
  • Nanoscale Plasmonic Nanotechnology

Technology Areas

  • Biotechnology