Accession Number:

ADA513573

Title:

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

Descriptive Note:

Final project rept. 3 Aug 2007-2 Aug 2009

Corporate Author:

NANYANG TECHNOLOGICAL UNIV (SINGAPORE)

Personal Author(s):

Report Date:

2010-01-14

Pagination or Media Count:

49.0

Abstract:

GDC-impregnated NiGDC anodes show the significant enhancement of the sulfur-tolerance of the anodes. However, the microstructure of GDC-impregnated NiGDC anodes still changes significantly in H2S-H2, indicating that GDC nanoparticles may not be able to completely inhibit the poisoning effect of sulfur on NiGDC anodes under present conditions studied. Co-impregnation of Pd-CeO2 was found to be most effective to enhance the activity of the NiGDC 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 NiGDC anodes, as compared the inhibiting effect of impregnation of Pd or GDC nanoparticles separately.

Subject Categories:

  • Electrochemical Energy Storage

Distribution Statement:

APPROVED FOR PUBLIC RELEASE