منابع مشابه
Development of plasma sprayed molybdenum carbide-based anode layers with various metal oxides for SOFC
Air plasma sprayed (APS) coatings provide an ability to deposit a range of novel fuel cell materials at competitive costs. This work develops three separate types of composite anodes (Mo-Mo2C/Al2O3, Mo-Mo2C/ZrO2, Mo-Mo2C/TiO2) using a combination of APS process parameters on Hastelloy ® X for application in intermediate temperature proton conducting solid oxide fuel cells. Commercially availabl...
متن کاملStructural and defect chemistry guidelines for Sr(V,Nb)O3-based SOFC anode materials.
Structural and defect chemistry guidelines were used for Nb-substituted SrVO3-δ materials, designed to meet SOFC anode requirements, with emphasis on redox tolerance, thermochemical compatibility with other SOFC materials, electrical conductivity and adjustable changes in oxygen stoichiometry for their prospective impact on electrocatalytic performance. SrV1-xNbxO3-δ (x = 0-0.30) ceramics were ...
متن کاملAn Examination of SOFC Anode Functional Layers Based on Ceria in YSZ
The properties of solid oxide fuel cell (SOFC) anode functional layers prepared by impregnation of ceria and catalytic metals into porous yttria-stabilized zirconia (YSZ) have been examined for operation at 973 K. By varying the thickness of the functional layer, the conductivity of the ceria-YSZ composite was determined to be only 0.015–0.02 S/cm. The initial performance of anodes made with ce...
متن کاملSimulation of SOFC stack and repeat elements including interconnect degradation and anode reoxidation risk
Reliability of SOFC stacks is a complex and key issue. This paper presents a simulation study including some degradation processes, namely nterconnect degradation and the anode reoxidation potential. Quantification for these phenomena has been included in a repeat element model to imulate stack degradation and study the influence of design and operating parameters on the degradation. Interconne...
متن کاملNumerical Study of Heterogeneous Reactions in an SOFC Anode with Oxygen Addition
Previous experimental studies have shown that addition of small amounts of oxygen to a hydrocarbon fuel stream can control coking in the anode, while relatively large amounts of oxygen are present in the fuel stream in single-chamber solid oxide fuel cells SOFCs . In order to rationally design an anode for such use, it is important to understand the coupled catalytic oxidation/ reforming chemis...
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ژورنال
عنوان ژورنال: ECS Proceedings Volumes
سال: 1999
ISSN: 0161-6374,2576-1579
DOI: 10.1149/199919.0840pv