The effect of strontium on praseodymium based perovskites for SOFC cathodes
- 1. Department of Physics, Osmania University, Hyderabad (India)
Description
Pr1-xSrxMO3-δ (PSMO) (0≤x≤0.6) (M = Fe, Co) cathode materials were synthesized by using soI-geI method. All the powders were formed in 600-7000 deg C temperature range. The materials were characterized by X-ray Diffraction (XRD) and Transmission Electron Microscopy (TEM). The crystal structure of Pr1-xSrxFeO3 (PSFO) is orthorhombic and Pr1-xSrxCoO3 (PSOO) is cubic. The lattice parameters were determined by X-ray powder diffraction. Lattice parameters and volume of the unit cell decrease for PSFO and increase for PSCO with increasing strontium content. Orthorhombic deformation decreases with increasing Sr for PSFO. Density of the samples is more than 90% of theoretical value. TEM images show that the particle size of PSMO is in the range 25-35 nm and 55-60 nm for as-synthesized and calcined powders respectively. (author)
Additional details
Publishing Information
- Publisher
- Osmania University
- Imprint Place
- Hyderabad (India)
- Imprint Title
- Proceedings of the fortieth national seminar on crystallography
- Imprint Pagination
- 219 p.
- Journal Page Range
- p. 116
Conference
- Title
- 40. national seminar on crystallography
- Acronym
- NSC-2011
- Dates
- 26-28 Nov 2011
- Place
- Hyderabad (India)
INIS
- Country of Publication
- India
- Country of Input or Organization
- India
- INIS RN
- 44022312
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- CRYSTAL STRUCTURE; LATTICE PARAMETERS; PRASEODYMIUM OXIDES; STRONTIUM OXIDES; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; COHERENT SCATTERING; DIFFRACTION; ELECTRON MICROSCOPY; MICROSCOPY; OXIDES; OXYGEN COMPOUNDS; PRASEODYMIUM COMPOUNDS; RARE EARTH COMPOUNDS; SCATTERING; STRONTIUM COMPOUNDS