Composite cathodes composed of NdBa0.5Sr0.5Co2O5+δand Ce0.9Gd0.1O1.95for intermediate-temperature solid oxidefuel cells

Jiyoun Kim; Won-yong Seo; Jeeyoung Shin; Meilin Liu; Guntae Kim

doi:10.1039/c2ta00025c

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Composite cathodes composed of NdBa_0.5Sr_0.5Co₂O_5+δand Ce_0.9Gd_0.1O_1.95for intermediate-temperature solid oxidefuel cells

Jiyoun Kim Won-yong Seo Jeeyoung Shin Meilin Liu Guntae Kim

Year: 2012 Journal: Journal of Materials Chemistry A Vol: 1 (3)Pages: 515-519 Publisher: Royal Society of Chemistry

DOI: 10.1039/c2ta00025c

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Abstract

The electrochemical properties of a composite cathode composed of NdBa0.5Sr0.5Co2O5+delta (NBSCO) and Ce0.9Gd0.1O1.95 (GDC) are investigated for intermediate-temperature solid oxide fuel cells (IT-SOFCs). In particular, cells based on NBSCO-GDC composite cathodes demonstrated higher performance than those based on a NBSCO cathode, probably due to the extended triple phase boundary (TPB) length. The oxygen reduction mechanism on the NBSCO-GDC composite cathodes is proposed to explain the superior electrochemical behaviour.

Keywords:

Cathode Triple phase boundary Materials science Electrochemistry Composite number Oxide Fuel cells Solid oxide fuel cell Analytical Chemistry (journal) Chemical engineering Composite material Electrode Ceramic Anode Physical chemistry Chemistry Metallurgy Yttria-stabilized zirconia

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Advancements in Solid Oxide Fuel Cells

Physical Sciences → Materials Science → Materials Chemistry

Catalysis and Oxidation Reactions

Physical Sciences → Chemical Engineering → Catalysis

Magnetic and transport properties of perovskites and related materials

Physical Sciences → Materials Science → Electronic, Optical and Magnetic Materials

Composite cathodes composed of NdBa_0.5Sr_0.5Co₂O_5+δand Ce_0.9Gd_0.1O_1.95for intermediate-temperature solid oxidefuel cells

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