Show simple item record

dc.contributor.authorLin, Y.
dc.contributor.authorRan, R.
dc.contributor.authorShao, Zongping
dc.identifier.citationLin, Y. and Ran, R. and Shao, Z. 2010. Silver-modified Ba0.5Sr0.5Co0.8Fe 0.2O3-d as cathodes for a proton conducting solid-oxide fuel cell, pp. 8281-8288.

Electrochemical performance of silver-modified Ba0.5Sr 0.5Co0.8Fe0.2O3-d (BSCF-Ag) as oxygen reduction electrodes for a protonic intermediate-temperature solid-oxide fuel cell (SOFC-H+) with BaZr0.1Ce0.8Y 0.1O3 (BZCY) electrolyte was investigated. The BSCF-Ag electrodes were prepared by impregnating the porous BSCF electrode with AgNO3 solution followed by reducing with hydrazine and then firing at 850 °C for 1 h. The 3 wt.% silver-modified BSCF (BSCF-3Ag) electrode showed an area specific resistance of 0.25 O cm2 at 650 °C in dry air, compared to around 0.55 O cm2 for a pure BSCF electrode. The activation energy was also reduced from 119 kJ mol-1 for BSCF to only 84 kJ mol-1 for BSCF-3Ag. Anode-supported SOFC-H+ with a BZCY electrolyte and a BSCF-3Ag cathode was fabricated. Peak power density up to 595 mW cm-2 was achieved at 750 °C for a cell with 35 µm thick electrolyte operating on hydrogen fuel, higher than around 485 mW cm-2 for a similar cell with BSCF cathode. However, at reduced temperatures, water had a negative effect on the oxygen reduction over BSCF-Ag electrode, as a result, a worse cell performance was observed for the cell with BSCF-3Ag electrode than that with pure BSCF electrode at 600 °C. © 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.

dc.titleSilver-modified Ba0.5Sr0.5Co0.8Fe 0.2O3-d as cathodes for a proton conducting solid-oxide fuel cell
dc.typeConference Paper
dcterms.source.titleInternational Journal of Hydrogen Energy
dcterms.source.seriesInternational Journal of Hydrogen Energy
curtin.departmentDepartment of Chemical Engineering
curtin.accessStatusFulltext not available

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record