1. Laboratory of Electrochemical Devices Based on Solid
Oxide Proton Electrolytes, Institute of High Temperature Electrochemistry, 620137 Yekaterinburg, Russia
2. Ural Federal University, 620002 Yekaterinburg, Russia
3. Laboratory of Alternative Energy Conversion Systems,
Department of Mechanical Engineering, School of Engineering, University of Thessaly, Pedion Areos, 383 34 Volos, Greece