A5013692169- Advancements in Solid Oxide Fuel Cells
- Magnetic and transport properties of perovskites and related materials
- Electronic and Structural Properties of Oxides
- Catalytic Processes in Materials Science
- Advanced Condensed Matter Physics
- Advanced Thermoelectric Materials and Devices
- Nuclear materials and radiation effects
- Electrochemical Analysis and Applications
- Ferroelectric and Piezoelectric Materials
- Metal Extraction and Bioleaching
- Rare-earth and actinide compounds
- Gas Sensing Nanomaterials and Sensors
- Metallurgical Processes and Thermodynamics
- Catalysis and Oxidation Reactions
- Semiconductor materials and devices
- Advancements in Battery Materials
- Fuel Cells and Related Materials
- Electrocatalysts for Energy Conversion
- Thermal Expansion and Ionic Conductivity
- Electron and X-Ray Spectroscopy Techniques
- Chalcogenide Semiconductor Thin Films
- Analytical Chemistry and Sensors
- Inorganic Chemistry and Materials
- Advanced Battery Materials and Technologies
- Physics of Superconductivity and Magnetism
Montanuniversität Leoben
2015-2024
Laboratoire de Chimie Moléculaire et Thioorganique
2008-2021
Max Planck Institute for Solid State Research
1985-2006
Graz University of Technology
1991-2001
TU Wien
1988
The stability of the solid oxide fuel cell (SOFC) cathode material in -containing atmospheres is investigated by precision thermogravimetry (TG) and mass spectrometry (MS) as a function temperature . desorption from samples with different pretreatments compared. Oxygen exchange at significantly impaired atmospheres. At kinetics carbonate formation -rich atmosphere described linear-parabolic rate law. A pronounced dependence constant on content suggested. Temperature cycles bar, which show...
Self-generated Ba(Ce,Fe,In)O3-δ composites were prepared by one-pot sol-gel synthesis. They consist of Ce-rich and Fe-rich phases, are intended to supply the required protonic electronic transport for air electrode materials in ceramic fuel electrolysis cells (PCFC, PCEC). Crystal structure, lattice parameters, relative phase amounts obtained from X-ray diffraction. The local chemical composition distribution cations within individual phases characterized scanning transmission electron...
The long-term stability of the oxygen exchange properties IT-SOFC cathode materials La0.6Sr0.4CoO3−δ and La0.58Sr0.4Co0.2Fe0.8O3−δ vs. chromium poisoning is investigated at 600°C by in-situ measurements chemical surface coefficient kchem using dc-conductivity relaxation method. as-prepared samples show high values kchem, which decrease moderately during treatment in a dry atmosphere 1000 h without with presence Cr-source. Humidification carrier gas results strong both materials. Post-test...
For the promising intermediate temperature solid oxide fuel cell (IT-SOFC) cathode material Nd2NiO4+δ, chemical surface exchange coefficients kchem and diffusion Dchem of oxygen have been determined by conductivity relaxation measurements compared with results for La0.6Sr0.4CoO3-δ between 575 725°C. At 725°C an partial pressure 0.1 bar, Nd2NiO4+δ amount to 1 × 10−3 cm s−1 2 10−6 cm2 s−1, respectively, which are higher than those La0.6Sr0.4CoO3-δ. However, due high activation energies, a...