Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5146076 | International Journal of Hydrogen Energy | 2017 | 7 Pages |
Abstract
Lowering the operating temperature of the solid oxide fuel cells (SOFCs) is one of the world R&D tendencies. Exploring novel electrolytes possessing high ionic conductivity at low temperature becomes extremely important with the increasing demands of the energy conversion technologies. In this work, perovskite La0.1SrxCa0.9âxMnO3âδ (LSCM) materials were synthesized and composited with the ionic conductor Sm0.2Ce0.8O1.9 (SDC). The LSCM-SDC composite was sandwiched between two nickel foams coated with semiconductor Ni0.8Co0.15Al0.05LiO2âδ (NCAL) to form the fuel cell device. The strontium content in the LSCM and the ratios of LSCM to SDC in the LSCM-SDC composite have significant effects on the electrical properties and fuel cell performances. The best performance has been achieved from LSCM-SDC composite with a weight ratio of 2:3. The fuel cells showed OCV over 1.0 V and excellent maximum output power density of 800 mW cmâ2 at 550 °C. Device processes and ionic transport processes were also discussed.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Xunying Wang, Muhammad Afzal, Hui Deng, Wenjing Dong, Baoyuan Wang, Youquan Mi, Zhaoyun Xu, Wei Zhang, Chu Feng, Zhaoqing Wang, Yan Wu, Bin Zhu,