Authors: Kyle M Allen Eric N Coker Nick Auyeung James F Klausner
Publish Date: 2013/08/03
Volume: 65, Issue: 12, Pages: 1670-1681
Abstract
The synthesis characterization and evaluation of different weight loadings of cobalt ferrite CoFe2O4 in 8 mol yttriastabilized zirconia 8YSZ via the coprecipitation method are reported Prepared powders were calcined at 1350°C for 36 h and 1450°C for 4 h in air These powders were then formed into a porous structure using sacrificial pore formation via oxidation of comixed graphite powder These formed structures obtained were then characterized using thermogravimetric analysis TGA xray diffraction hightemperature xray diffraction scanning electron microscopy and energydispersive xray spectroscopy Brunauer–Emmett–Teller surface area analysis was performed on the most promising of the structures before being subjected to 50 thermal reductionCO2 oxidation redox cycles using TGA Together these results indicate that CoFe2O48YSZ can provide a lower reduction temperature maintain syngas production performance from cycle to cycle and enhance utilization of the reactive material within the inert support in comparison to iron oxide only structuresThis work was supported by the US Department of Energy under Award No DEAR0000184 and partially supported by the National Institute for Nano Engineering program at Sandia National Laboratories Sandia is a multiprogram laboratory operated by Sandia Corporation a Lockheed Martin Company for the United States Department of Energy’s National Nuclear Security Administration under contract DEAC0494AL85000 We thank Mark A Rodriguez Sandia National Laboratories for help with HTXRD data collection and analysis
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