SDC-infiltrated microporous silver membrane with superior resistance to thermal agglomeration for cathode-supported solid oxide fuel cells

• Main Authors: Baek, Jong Dae, Fan, Liangdong, Wiria, Florencia Edith, Su, Pei-Chen, Lee, Seong Hyuk, Lee, Tsung-Han
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2018
• Subjects: Solid Oxide Fuel Cells; Samarium-doped Ceria; DRNTU::Engineering::Mechanical engineering
• Online Access: https://hdl.handle.net/10356/89577; http://hdl.handle.net/10220/46302
• Institution: Nanyang Technological University

This work presents a microporous silver cathode membrane reinforced with infiltration of samarium-doped ceria (SDC). The ion-conducting SDC effectively confines the surface of a porous silver membrane to maintain microporous structure and prevents the electrode agglomeration. SDC precursor solution is fired together with silver membrane at 700 °C for 2 h and formed as a nanocrystalline SDC on the silver pore surface. The SDC-infiltrated microporous silver membrane shows superior resistance to agglomeration without noticeable change in microstructures even at 900 °C for 12 h, which makes it promising for the application of solid oxide fuel cells as a cathode support.