Congcong Huang , Jiahong Hu , Jianhua Huang , Hailin Zhan , Louis Winnubst , Chusheng Chen
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引用次数: 0
Abstract
Solid oxide fuel cells (SOFCs) supported on ceramic cathodes exhibit better redox stability and allow for a broader selection of anode materials compared to those supported on Ni-yttria stabilized zirconia (YSZ) cermet anodes. In the present study, a cathode-supported all-ceramic SOFC was investigated. The cathode consisted of a phase-inversion derived porous YSZ scaffold impregnated with LaCoO3 (LCO) nanoparticles of optimal loading 15 wt%. The anode was composed of a thin porous YSZ scaffold impregnated with Sr1.9Fe1.4Ni0.1Mo0.5O6-δ (SFNM) nanoparticles of optimal loading 40 wt%. An SOFC featuring a 400 μm thick LCO@YSZ cathode, a 10 μm thick YSZ electrolyte, and a 30 μm thick SFNM@YSZ anode, achieved a maximum power density of 1084 mW•cm−2 at 800 °C and 350 mW•cm−2 at 650 °C. The cell with an LCO-Gd0.1Ce0.9O2-δ composite cathode exhibited improved stability compared to that with the LCO single-phase cathode when operated in potentiostatic mode at 650 °C.
期刊介绍:
The Journal of the European Ceramic Society publishes the results of original research and reviews relating to ceramic materials. Papers of either an experimental or theoretical character will be welcomed on a fully international basis. The emphasis is on novel generic science concerning the relationships between processing, microstructure and properties of polycrystalline ceramics consolidated at high temperature. Papers may relate to any of the conventional categories of ceramic: structural, functional, traditional or composite. The central objective is to sustain a high standard of research quality by means of appropriate reviewing procedures.