| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Cramer, Carolyn N.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (5/5 displayed)
- 2010Advanced Ceramic Interconnect Material for Solid Oxide Fuel Cells: Electrical and Thermal Properties of Calcium- and Nickel-Doped Yttrium Chromitescitations
- 2010Calcium- and Cobalt-doped Yttrium Chromites as an Interconnect Material for Solid Oxide Fuel Cellscitations
- 2010Improvement of Sintering, Thermal Behavior, and Electrical Properties of Calcium- and Transition Metal-Doped Yttrium Chromitecitations
- 2010Interaction of coal-derived synthesis gas impurities with solid oxide fuel cell metallic componentscitations
- 2010SOFC Ohmic Resistance Reduction by HCl-Induced Removal of Manganese at the Anode/Electrolyte Interfacecitations
Places of action
| Organizations | Location | People |
|---|
article
Improvement of Sintering, Thermal Behavior, and Electrical Properties of Calcium- and Transition Metal-Doped Yttrium Chromite
Abstract
The A-site calcium doped yttrium chromite was additionally doped with various transition metals on the B-site to improve the sintering, thermal behavior and electrical properties of these ceramics for future use as an interconnect material in high temperature solid oxide fuel cells (SOFC). With 10 % addition of Co, Cu, Ni, Fe, and Mn, the single phase orthorhombic perovskite structure remained stable over a wide range of oxygen partial pressures, as confirmed by X-ray diffraction. The substitution of Cu for chromium remarkably improved the sinterability and allowed full densification in air by sintering at 1400 degrees C. The substitution of Co and Ni significantly improved the electrical conductivity of yttrium chromites in both oxidizing and reducing environments. This was explained by the increase of charge carrier density with nickel and cobalt doping, as confirmed by Seebeck measurements. With 10% of nickel dopant, the electrical conductivity of Y0.8Ca0.2CrO3±δ increased from 12 to 38 S/cm in air and from 2 to 15 S/cm in reducing atmosphere at 950 degrees C. Mn doping had a negative effect on the sintering and electrical conductivity.