Electrochemical investigation of Pr2CuO4-based composite cathode for intermediate-temperature solid oxide fuel cells

Synthesis and Electrochemical Studies of Novel Cobalt Free (Nd0.9La0.1)1.6Sr0.4 Ni0.75Cu0.25O3.8 (NLSNC4) Cathode Material for IT‐SOFCs

“…As the oxygen reduction reaction rate is strongly dependent on the oxygen partial pressure and as the NLSNC4 compound is a mixed electron and oxygen ion conductor, higher oxygen ion activity and lower polarization resistance is expected by increasing oxygen partial pressure. These results also proved that an oxygen activity related electrochemical reaction probably occurred on the NLSNC4 cathode .…”

“…However, the operating temperature of customary oxygen conductor SOFC is as high as 800–1,000 °C, which causes reaction and thermal expansion mismatch between the components of the cell and brings in issues for selecting the required sealing materials , . Therefore, researchers are trying to find a way for reducing the operating temperature of SOFCs to intermediate temperatures (IT, 600–800 °C) , . Lowering the SOFC's operating temperature not only prolongs the lifetime of the fuel cell but also decreases the material and manufacturing costs of the SOFC system , .…”

Novel materials for solid oxide fuel cell technologies: A literature review

“…Materials with an A 2 BO 4þd structure (A ¼ rare earth; B ¼ Cu, Fe and Ni) have been investigated due to their potential use as cathodes in fuel cells. Among these compositions, lanthanum nickelates exhibit extremely high oxygen surface exchange coefficient [52], while Pr 2 CuO 4 -based composites present compatibility with commercial electrolyte materials [50], which makes them feasible for commercial applications. Lanthanum nickelates with several La contents have been studied by Ferkhi and Yahia [53], while Kolchugin et al [52] and Sharma et al [54] have investigated calcium-and praseodymium-doped lanthanum nickelates, respectively, with different content.…”

“…Lanthanum nickelates with several La contents have been studied by Ferkhi and Yahia [53], while Kolchugin et al [52] and Sharma et al [54] have investigated calcium-and praseodymium-doped lanthanum nickelates, respectively, with different content. Pr 2 CuO 4 -based composites were studied by Li et al [50] and Chiu et al [51].…”

“…Li et al [50] studied a Pr 2 CuO 4 (PCO) material with the addition of Ce 0.9 Gd 0.1 O 1.95 (CGO) in order to increase cathode electrochemical performance. PCO powders were obtained by the glycine nitrate process (GNP) by using Pr(NO 3 ) 3 and Cu(NO 3 ) 2 as starting materials.…”