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Title

Microtubular SOFCs for power generation, steam electrolysis and syngas production

AuthorsLaguna-Bercero, M. A. ; Monzón, Hernán; Larrea, A. ; Orera, V. M.
Issue Date2013
Citation2nd Hydrogen and Fuel Cells Conference 2013
AbstractMicrotubuiar SOFCs have fowsed iarge attention in the recentyears, as they present good resistance to themal cycling (rapid start-up and cooling times). In addition, due to the easv sealing. they aiso possess superior durability in comparison wiih the tradtional planar geometry. Anode supported NiO-YSZ (yttria stabilized zirconia) microtubes were fabricated by extrusion. Ali the parameters (powder cornposition, pore formers, organic additives) were adjusted in order to obtain the desired green tubes. Subsequently, optimization, of the solvent and thermal debinding was also performed. YSZ electrolytes were deposited by dip-coating followed by cosinterization with the anode supoorts al 1450 ºC. Finally LSM (lanthanum strontium manganite)-YSZ catnodes were deposited by dip-coating and sintered at 1150 ºC. A typicai microstructure of the celi is shown in figure 1. Complete fuel cell characterization was performed. Results of current/power density-voltage curves, AC impedance spectroscopy, themal cycling and durability will be presented and discussed. ln addition, the reversibility oi the cells will be also analysed by studies of steam electroiysis. CO2 electrolysis and coelectrolysis of steam and CO2 to produce syngas.
DescriptionTrabajo presentado al "Second Zing International Hydrogen and Fuel Cells Conference celebrado en California (US)" del 12 al 15 de julio de 2013.
URIhttp://hdl.handle.net/10261/107930
Appears in Collections:(ICMA) Comunicaciones congresos
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