Characteristics of the La0.6Sr0.4Fe0.8Co0.2O3 − δ electrode in contact with the lanthanum gallate-based electrolyte

Autor: S. N. Shkerin, A. S. Lipilin, A. V. Nikonov, Olga I. Gyrdasova, D. M. Stepanov
Rok vydání: 2013
Předmět:
Zdroj: Russian Journal of Electrochemistry. 49:813-816
ISSN: 1608-3342
1023-1935
DOI: 10.1134/s1023193513080156
Popis: Lowering the working temperature of solid oxide fuel cells (SOFCs) is the main trend in their development, which requires selection of materials for electrolyte and electrodes. A highly conducting lanthanum gallate-based electrolyte is a promising material for creating medium-temperature SOFCs. The electrochemical characteristics of the La0.6Sr0.4Fe0.8Co0.2O3 − δ cathode that contacted with the La0.88Sr0.12Ga0.82Mg0.18O2.85 electrolyte subject to electrode formation temperatures have been investigated. It was found that at optimum bake-on temperatures of 1200–1250°C, the cathode polarization resistance at 800°C was ∼0.08 Ohm cm2, which is comparable to the world’s best achievements.
Databáze: OpenAIRE