Regularities of high-temperature oxidation of current collectors of solid oxide fuel cells due to diffusion processes in subsurface regions
| Autor: | Sergey Bredikhin, Danila Matveev, Vladislav V. Kharton, N. V. Demeneva |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Scanning electron microscope 020209 energy Schottky barrier Contact resistance Metallurgy Analytical chemistry Oxide 02 engineering and technology Current collector 021001 nanoscience & nanotechnology Electrochemistry Cathode Cathodic protection law.invention chemistry.chemical_compound chemistry law 0202 electrical engineering electronic engineering information engineering 0210 nano-technology |
| Zdroj: | Russian Journal of Electrochemistry. 52:678-684 |
| ISSN: | 1608-3342 1023-1935 |
| DOI: | 10.1134/s1023193516070065 |
| Popis: | A complex study of regularities of oxidative reactions is carried out in subsurface layers of current collectors of solid oxide fuel cells manufactured of Crofer 22APU or Crofer 22H stainless steel. The methods of scanning electron microscopy, energy dispersive X-ray analysis, and Raman spectroscopy are used to study the distribution of the main steel elements in subsurface layers of current collectors as dependent on the operation time under the conditions of a cathodic chamber of solid oxide fuel cells. A mechanism of the process is suggested and contact resistance between the current collector and LSM cathode is calculated using the model of a Schottky barrier for a metal–semiconductor junction. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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