Concepedia

Composite cathodes composed of NdBa<sub>0.5</sub>Sr<sub>0.5</sub>Co<sub>2</sub>O<sub>5+δ</sub>and Ce<sub>0.9</sub>Gd<sub>0.1</sub>O<sub>1.95</sub>for intermediate-temperature solid oxidefuel cells

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

Journal of Materials Chemistry A · 2012 · 73 citations · 32 references

DOI

Concepts

Abstract

The electrochemical properties of a composite cathode composed of NdBa0.5Sr0.5Co2O5+δ (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.

References

32

A high-performance cathode for the next generation of solid-oxide fuel cells

Zongping Shao, Sossina M. Haile · Nature · 2004 · 3.1K citations

, , +15

Physical, chemical and electrochemical properties of pure and doped ceria

Mogens Bjerg Mogensen · Solid State Ionics · 2000 · 2.1K citations

, , +12

Optimisation of composite cathodes for intermediate temperature SOFC applications

Vincent Dusastre, John A. Kilner · Solid State Ionics · 1999 · 699 citations

, , +13

Sm0.5Sr0.5CoO3 cathodes for low-temperature SOFCs

Changrong Xia · Solid State Ionics · 2002 · 620 citations

, , +8

Rapid oxygen ion diffusion and surface exchange kinetics in PrBaCo2O5+x with a perovskite related structure and ordered A cations

Guntae Kim, S. Wang, Allan J. Jacobson et al. · Journal of Materials Chemistry · 2007 · 584 citations

, , +17