Unknown

Dataset Information

0

Textured Sr?Sc0.1Nb0.1Co1.5Fe0.3O6-2? Thin Film Cathodes for IT-SOFCs.

ABSTRACT: Reducing the operating temperature of solid oxide fuel cells (SOFCs) to intermediate (650?850 °C) or even lower levels (400?650 °C) is an important practical requirement. However, the main obstacle to lowering the operating temperature is the poor oxygen reduction reaction (ORR) activity on the cathode side and, therefore, it is essential to explore cathode materials with good ORR activity in these temperature ranges. In this work, we investigated the possibility of using Sr?Sc0.1Nb0.1Co1.5Fe0.3O6-2? (SSNCF) as a suitable intermediate temperature cathode material. SSNCF thin films with different orientations were prepared using the pulsed laser deposition technique, and the relationship of the surface chemical states and ORR activity was discussed in terms of crystallographic orientation. The results showed that the SSNCF/YSZ grown along the [110] direction exhibited superior ORR activity compared to the SSNCF/SDC/YSZ thin film electrode grown along the [100] direction. This was explained by the variation in the Sr-surface enrichment and cobalt ion oxidation state using X-ray photoemission spectroscopy.

SUBMITTER: Zhu Z 

PROVIDER: S-EPMC6427658 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature

Json Xml
altmetric image

Publications

Textured Sr₂Sc<sub>0.1</sub>Nb<sub>0.1</sub>Co<sub>1.5</sub>Fe<sub>0.3</sub>O<sub>6-2δ</sub> Thin Film Cathodes for IT-SOFCs.

Zhu Zhaoxin Z   Zhou Chuan C   Zhou Wei W   Yang Nan N  

Materials (Basel, Switzerland) 20190307 5

Reducing the operating temperature of solid oxide fuel cells (SOFCs) to intermediate (650⁻850 °C) or even lower levels (400⁻650 °C) is an important practical requirement. However, the main obstacle to lowering the operating temperature is the poor oxygen reduction reaction (ORR) activity on the cathode side and, therefore, it is essential to explore cathode materials with good ORR activity in these temperature ranges. In this work, we investigated the possibility of using Sr₂Sc<sub>0.1</sub>Nb<s  ...[more]

Similar Datasets

Unknown Evaluation of High-Temperature Hydrogen Sensors Based on BaCe<sub>0.6</sub>Zr<sub>0.3</sub>Y<sub>0.1</sub>O<sub>3-?</sub> and Sr(Ce<sub>0.9</sub>Zr<sub>0.1</sub>)<sub>0.95</sub>Yb<sub>0.05</sub>O<sub>3-?</sub> Perovskites for Industrial Applications.
| S-EPMC7766507 | biostudies-literature
Unknown Magnetocapacitance in La<sub>0.7</sub>Sr<sub>0.3</sub>MnO<sub>3</sub>/Pb(Zr<sub>0.2</sub>Ti<sub>0.8</sub>)O<sub>3</sub>/La<sub>0.7</sub>Sr<sub>0.3</sub>MnO<sub>3</sub> multiferroic heterostructures.
| S-EPMC5529449 | biostudies-literature
Unknown In situ formation of oxygen vacancy in perovskite Sr(0.95)Ti(0.8)Nb(0.1)M(0.1)O3 (M = Mn, Cr) toward efficient carbon dioxide electrolysis.
| S-EPMC5382710 | biostudies-literature
Unknown Electrostatic potential and valence modulation in La<sub>0.7</sub>Sr<sub>0.3</sub>MnO<sub>3</sub> thin films.
| S-EPMC6156561 | biostudies-literature
Unknown Direct Observation of Dynamic Lithium Diffusion Behavior in Nickel-Rich, LiNi<sub>0.8</sub>Mn<sub>0.1</sub>Co<sub>0.1</sub>O<sub>2</sub> (NMC811) Cathodes Using <i>Operando</i> Muon Spectroscopy.
| S-EPMC10268956 | biostudies-literature
Unknown Superparamagnetic state in La<sub>0.7</sub>Sr<sub>0.3</sub>MnO<sub>3</sub> thin films obtained by rf-sputtering.
| S-EPMC7018749 | biostudies-literature
Unknown Interfacial reconstruction in La<sub>0.7</sub>Sr<sub>0.3</sub>MnO<sub>3</sub> thin films: giant low-field magnetoresistance.
| S-EPMC9418895 | biostudies-literature
Unknown Superconducting and normal-state anisotropy of the doped topological insulator Sr<sub>0.1</sub>Bi<sub>2</sub>Se<sub>3</sub>.
| S-EPMC5956080 | biostudies-literature
Unknown Interface-induced spontaneous positive and conventional negative exchange bias effects in bilayer La<sub>0.7</sub>Sr<sub>0.3</sub>MnO<sub>3</sub>/Eu<sub>0.45</sub>Sr<sub>0.55</sub>MnO<sub>3</sub> heterostructures.
| S-EPMC5537235 | biostudies-literature
Unknown Al(0.5)Nb(1.5)(PO(4))(3).
| S-EPMC3051931 | biostudies-literature