Recent developments in solid oxide fuel cell technology – a review

Abstract

This review presents development of low temperature solid oxide fuel cells (SOFC), which with high efficiency and high environmental performance have shown excellent potential as a future source of energy for vehicles and homes. Gd₂O₃ and Sm₂O₃ doped ceria based nanomaterials were developed world wide, as alternate electrolyte materials for SOFCs working at reduced temperature (700°C) since, state-of- art YSZ based electrolytes undergo interfacial reactions with adjoining cell components at operating temperature of SOFC after prolonged operation. Novel ceramic composite materials are reported as alternate electrode components of reduced temperature SOFC. Iron based alloys are developed as current collectors for low temperature SOFC applications.