Electrolyte Materials for Solid Oxide Fuel Cells (SOFCs)
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Solid oxide fuel cells (SOFCs) have aroused worldwide attention for their high conversion efficiency, zero emissions, and fuel flexibility. Generally, a SOFC consists of an anode, a cathode and a electrolyte. The electrolytes usually exert a crucial role in the performance of SOFCs. The normal electrolyte materials could be generally divided into two subclasses: oxygen ion and proton-conducting electrolyte ones, based on their different types of conduction mechanisms. In this chapter, we describe the requirements for the materials as the electrolytes of SOFCs and the recent developments of oxygen-ion conducting electrolyte, proton-conducting electrolyte and dual-phase composite electrolyte materials. Major attention is paid to the influences of structures, preparation and modified methods on the ion conduction properties of fluorite and perovskite electrolyte materials of SOFCs.
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Su, Chao; Wang, Wei; Liu, M.; Tadé, Moses; Shao, Zongping (2015)Symmetrical solid oxide fuel cells (SOFCs) have attracted increasing attention due to their potential for improved thermomechanical compatibility of the electrolyte and the electrodes, reduced fabrication cost, and enhanced ...
Significant performance enhancement of yttrium-doped barium cerate proton conductor as electrolyte for solid oxide fuel cells through a Pd ingress–egress approachLiu, Y.; Ran, R.; Li, S.; Jiao, Y.; Tade, Moses; Shao, Zongping (2014)Proton-conducting perovskite oxides are excellent electrolyte materials for SOFCs that may improve power density at reduced temperatures and increase fuel efficiency, thus encouraging the widespread implementation of this ...
A novel approach for substantially improving the sinterability of BaZr0.4Ce0.4Y0.2O3-delta electrolyte for fuel cells by impregnating the green membrane with zinc nitrate as a sintering aidLiu, Y.; Guo, Y.; Ran, R.; Shao, Zongping (2013)BaZr0.4Ce0.4Y0.2O3-delta (BZCY4) has been widely considered to be a promising electrolyte material for H+ - SOFC, but it is restricted to commercial applications due to its poor densification behavior. A dense BZCY4 pellet ...