Unknown

Dataset Information

0

Nanostructured La0.75Sr0.25Cr0.5Mn0.5O3-Ce0.8Sm0.2O2 Heterointerfaces as All-Ceramic Functional Layers for Solid Oxide Fuel Cell Applications.

ABSTRACT: The use of nanostructured interfaces and advanced functional materials opens up a new playground in the field of solid oxide fuel cells. In this work, we present two all-ceramic thin-film heterostructures based on samarium-doped ceria and lanthanum strontium chromite manganite as promising functional layers for electrode application. The films were fabricated by pulsed laser deposition as bilayers or self-assembled intermixed nanocomposites. The microstructural characterization confirmed the formation of dense, well-differentiated, phases and highlighted the presence of strong cation intermixing in the case of the nanocomposite. The electrochemical properties─solid/gas reactivity and in-plane conductivity─are strongly improved for both heterostructures with respect to the single-phase constituents under anodic conditions (up to fivefold decrease of area-specific resistance and 3 orders of magnitude increase of in-plane conductivity with respect to reference single-phase materials). A remarkable electrochemical activity was also observed for the nanocomposite under an oxidizing atmosphere, with no significant decrease in performance after 400 h of thermal aging. This work shows how the implementation of nanostructuring strategies not only can be used to tune the properties of functional films but also results in a synergistic enhancement of the electrochemical performance, surpassing the parent materials and opening the field for the fabrication of high-performance nanostructured functional layers for application in solid oxide fuel cells and symmetric systems.

SUBMITTER: Sirvent JD 

PROVIDER: S-EPMC9501924 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature

Json Xml
altmetric image

Publications

Nanostructured La<sub>0.75</sub>Sr<sub>0.25</sub>Cr<sub>0.5</sub>Mn<sub>0.5</sub>O<sub>3</sub>-Ce<sub>0.8</sub>Sm<sub>0.2</sub>O<sub>2</sub> Heterointerfaces as All-Ceramic Functional Layers for Solid Oxide Fuel Cell Applications.

Sirvent Juan de Dios JD   Carmona Albert A   Rapenne Laetitia L   Chiabrera Francesco F   Morata Alex A   Burriel Mónica M   Baiutti Federico F   Tarancón Albert A  

ACS applied materials & interfaces 20220907 37

The use of nanostructured interfaces and advanced functional materials opens up a new playground in the field of solid oxide fuel cells. In this work, we present two all-ceramic thin-film heterostructures based on samarium-doped ceria and lanthanum strontium chromite manganite as promising functional layers for electrode application. The films were fabricated by pulsed laser deposition as bilayers or self-assembled intermixed nanocomposites. The microstructural characterization confirmed the for  ...[more]

Similar Datasets

Unknown Performance Enhancement of Ce<sub>0.8</sub>Sm<sub>0.2</sub>O<sub>1.9</sub>-Supported SOFC by Electrophoretic Formation of Modifying BaCe<sub>0.8</sub>Sm<sub>0.2</sub>O<sub>3</sub> and Ce<sub>0.8</sub>Sm<sub>0.1</sub>Pr<sub>0.1</sub>O<sub>1.9</sub> Layers.
| S-EPMC10222043 | biostudies-literature
Unknown Peculiar Properties of the La<sub>0.25</sub>Ba<sub>0.25</sub>Sr<sub>0.5</sub>Co<sub>0.8</sub>Fe<sub>0.2</sub>O<sub>3-δ</sub> Perovskite as Oxygen Reduction Electrocatalyst.
| S-EPMC9965584 | biostudies-literature
Unknown A Bulk-Heterostructure Nanocomposite Electrolyte of Ce<sub>0.8</sub>Sm<sub>0.2</sub>O<sub>2-δ</sub>-SrTiO<sub>3</sub> for Low-Temperature Solid Oxide Fuel Cells.
| S-EPMC8187505 | biostudies-literature
Unknown Hydrogen separation through tailored dual phase membranes with nominal composition BaCe<sub>0.8</sub>Eu<sub>0.2</sub>O<sub>3-δ</sub>:Ce<sub>0.8</sub>Y<sub>0.2</sub>O<sub>2-δ</sub> at intermediate temperatures.
| S-EPMC5095711 | biostudies-literature
Unknown The sintering temperature effect on electrochemical properties of Ce<sub>0.8</sub>Sm<sub>0.05</sub>Ca<sub>0.15</sub>O<sub>2-δ</sub> (SCDC)-La<sub>0.6</sub>Sr<sub>0.4</sub>Co<sub>0.2</sub>Fe<sub>0.8</sub>O<sub>3-δ</sub> (LSCF) heterostructure pellet.
| S-EPMC6517467 | biostudies-literature
Unknown Diffusion Barriers Minimizing the Strength Degradation of Reactive Air Brazed Ba<sub>0.5</sub>Sr<sub>0.5</sub>Co<sub>0.8</sub>Fe<sub>0.2</sub>O<sub>3-δ</sub> Membranes during Aging.
| S-EPMC10221055 | biostudies-literature
Unknown Structurally distorted perovskite La<sub>0.8</sub>Sr<sub>0.2</sub>Mn<sub>0.5</sub>Co<sub>0.5</sub>O<sub>3-δ</sub> by graphene nanoplatelet and their composite for supercapacitors with enhanced stability.
| S-EPMC9203535 | biostudies-literature
Unknown Evolution of two bulk-superconducting phases in Sr<sub>0.5</sub>RE<sub>0.5</sub>FBiS<sub>2</sub> (RE: La, Ce, Pr, Nd, Sm) by external hydrostatic pressure effect.
| S-EPMC7393496 | biostudies-literature
Unknown Plasma engraved Bi<sub>0.1</sub>(Ba<sub>0.5</sub>Sr<sub>0.5</sub>)<sub>0.9</sub>Co<sub>0.8</sub>Fe<sub>0.2</sub>O<sub>3-δ</sub> perovskite for highly active and durable oxygen evolution.
| S-EPMC6414661 | biostudies-literature
Unknown Two orders of magnitude enhancement in oxygen evolution reactivity on amorphous Ba<sub>0.5</sub>Sr<sub>0.5</sub>Co<sub>0.8</sub>Fe<sub>0.2</sub>O<sub>3-δ</sub> nanofilms with tunable oxidation state.
| S-EPMC5479656 | biostudies-literature