Double Perovskite LaSrCo1.6Cu0.4O5-delta Cathode for IT-SOFCs with Pulsed Laser Technique Deposited Bi-Layer Electrolyte

作者:Fu Yen Pei*; Chen Rou Hua; Hsieh Min Yen; Subardi Adi; Chang Wen Ku
来源:Journal of the Electrochemical Society, 2015, 162(9): F1029-F1035.
DOI:10.1149/2.0851509jes

摘要

This study included two parts: (1) the structural characteristics, chemical stability, thermal expansion coefficient (TEC), chemical bulk diffusion coefficient (D-chem), chemical surface exchange coefficient (k(chem)), electrochemical performance and single cell performance for LaSrCo1.6Cu0.4O5+delta as an intermediate-temperature solid oxide fuel cells (IT-SOFC) cathode material, and (2) using a pulsed laser technique (PLD) deposited a dense Ce0.8Sm0.2O1.9 (SDC) thin layer on thick SDC as bi-layer electrolyte and infiltrating SDC nanoparticles onto LaSrCo1.6Cu0.4O5+delta skeleton to improve the performance of the single cell. The single cell assembling with 0.5M SDC-infiltrated LaSrCo1.6Cu0.4O5+delta cathode and PLD-deposited SDC/SDC bilayer have shown very good performance at low operating temperatures.