Search NASA⌕ Search

SEARCH · Search NASA

Results for “synthesis (scalable processing)”

Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 469 records · Page 26
All sourcesNASA NTRSDOE OSTI
DOE OSTI2013

Electrical characterization and water sensitivity of Sr 2 Fe 1.5 Mo 0.5 O 6-δ as a possible solid oxide fuel cell electrode

Sr 2 Fe 1.5 Mo 0.5 O 6-δ (SFMO) powders were synthesized by combustion synthesis. Porous samples were formed by uniaxial pressing of powder compacts and sintering in air. Electrical conductivity was measured by a four-point DC technique over a temperature range from 200 °C to 800 °C in air and in hydrogen. Crystal structures were investigated by X-ray diffractometry. Stability of powder samples was investigated in H 2 O-containing atmospheres. It was observed that Sr 2 Fe 1.5 Mo 0.5 O 6-δ was stable at 800 °C in water-containing atmospheres. However, it reacts with water at low temperatures. Reaction of Sr 2 Fe 1.5 Mo 0.5 O 6-δ (SFMO) with water at low temperatures is a potential shortcoming of this material for application in solid oxide fuel cells (SOFC) due to concerns regarding degradation of the electrodes at low temperatures during cycling.

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗