Electrical Conducting Properties of LSF-Based Composites as an Interconnection of Tubular Type of Solid Oxide Fuel Cells. (2nd June 2015)

• Record Type: Journal Article
• Authors: Yu, Ji Haeng; Lee, Hee Lak; Shin, Hyung Chul; Cho, Sangyoung; Joo, Jong Hoon; Yoo, Chung-Yul
• Is Part Of: ECS transactions. Volume 68:Number 1(2015)
• Page Start: 1727
• Page End: 1732
• Publication Date: 2015-06-02
• Subjects: Electrochemistry -- Periodicals; Electrochemistry; Periodicals; Electronic journals; Electronic journal; 541.37
• DOI: 10.1149/06801.1727ecst
• Languages: English
• ISSNs: 1938-5862

Abstract

Abstract : We investigated La0.8 Sr0.2 FeO3 -δ (LSF)-based composite materials as the interconnection for tubular SOFCs. LSF is a mixed ionic and electronic (hole) conducting material and thus shows low electrical conductivity in reducing (H2 ) atmosphere. However, composite materials with LSF and ceria show moderate electrical conductivity by electronic leakage current through doped ceria and LSF. LSF-GDC composite and LSF layers were successfully deposited on NiO-YSZ anode substrate by conventional co-firing process. The area specific resistance of LSF/LSF-GDC bilayer on Ni-YSZ measured in air//H2 condition was initially ~50 mΩcm 2 .