Abstract
The crystal chemistry, thermal expansion behavior, electrical conductivity, chemical compatibility, and electrochemical performance in intermediate temperature solid oxide fuel cells (SOFCs) of perovskite oxides have been investigated. The samples crystallize in an orthorhombic structure, and the lattice volume increases with increasing Sr content, The thermal expansion coefficient decreases with reaches a minimum at and then increases. The electrical conductivity increases with and the system exhibits a semiconductor-to-metal transition at around The electrocatalytic activity and power density increase with increasing reaches a maximum around and then decreases due to an interfacial reaction of the sample with the electrolyte. The sample shows a maximum power density value of at 800°C in single cells fabricated with the electrolyte and cermet anode. © 2004 The Electrochemical Society. All rights reserved.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
