Novel Highly Titania Doped YSZ Anodes for SOFCs
نویسندگان
چکیده
منابع مشابه
Characterization of YSZ-YST Composites for SOFC Anodes
Porous composites of Sr0.88Y0.08TiO3-δ (YST) and yttria-stabilized zirconia (YSZ) were formed by tapecasting methods and examined as potential anodes for SOFC. Even after calcination to 1773 K, the YSZ and YST crystallites remain as separate phases, as demonstrated by XRD and SEM with EDX analysis. Furthermore, it was possible to fabricate anode-supported electrolytes by calcination of a bilaye...
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Uniform, highly porous, columnar thin films incorporating YSZ and NiO prepared by magnetron sputtering with deposition at glancing incidence exhibited stoichiometries close to that of the YZr-Ni sputter target. Characterization by means of SEM, XRD, XPS and RBS revealed that the uniformly distributed nickel component in the as-deposited films consisted of NiO, and that the YSZ component was ess...
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The properties of solid oxide fuel cell (SOFC) anode functional layers prepared by impregnation of 1 wt % Pd and 10 wt % ceria into porous scaffolds of either Y0.04Ce0.48Zr0.48O2 (CZY) or composites of La0.3Sr0.7TiO3 (LST) and yttria-stabilized zirconia (YSZ) were examined to determine whether these scaffold materials would have sufficient electronic and ionic conductivity. Laminated tapes were...
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Doped Bi-based oxides were investigated as potential anode materials for direct hydrocarbon solid oxide fuel cells ~SOFCs! at intermediate temperatures. (Bi2O3)0.85(Ta2O5)0.15 met this criterion most successfully. A fraction of Bi2O3 in this material was reduced to BiO and Bi metal under fuel conditions, which yielded high conductivities ~,1 S cm! based on oxide ions and electrons above 500°C. ...
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Cathodic and anodic overpotentials were measured using current interruption and AC impedance spectroscopy for two separate solid oxide fuel cells (SOFCs). The fuel cells used yttria-stabilized zirconia (YSZ) as the electrolyte, strontium-doped lanthanum manganite (LSM) as the cathode, and a porous YSZ layer impregnated with copper and ceria as the anode. The Cu/CeO2/YSZ anode is active for the ...
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ژورنال
عنوان ژورنال: ECS Proceedings Volumes
سال: 1999
ISSN: 0161-6374,2576-1579
DOI: 10.1149/199919.0541pv