Exploring Highly Yttrium Doped Barium Zirconate Proton Conductor Electrolytes for Application in Intermediate Temperature Solid Oxide Fuel Cells (IT-SOFCs)

2009 ◽  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Proton Conductor ◽  
Solid Oxide ◽  
Intermediate Temperature ◽  
Barium Zirconate ◽  
Oxide Fuel

Synthesis and Characterization of BaZr0.8Y0.2O3 Protonic Conductor for Intermediate Temperature Solid Oxide Fuel Cells (IT-SOFCs)

2006 ◽  
Vol 972 ◽  
Author(s):  
Alessandra D'Epifanio ◽  
Emiliana Fabbri ◽  
Elisabetta Di Bartolomeo ◽  
Silvia Licoccia ◽  
Enrico Traversa
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Sol Gel ◽  
Cell Polarization ◽  
Solid Oxide ◽  
Intermediate Temperature ◽  
Barium Zirconate ◽  
Oxide Fuel ◽  
Protonic Conductor ◽  
Molar Ratios

AbstractBarium zirconate BaZr0.8Y0.2O3-δ, to be used as protonic conductor under hydrogen containing atmosphere in intermediate temperature (500-700°C) solid oxide fuel cells (IT-SOFCs) was prepared using a sol-gel technique to produce materials with controlled chemical structure and microstructural properties. Several synthetic procedures were investigated, dissolving the metal cations in two solvents (water and ethylene glycol) and using different molar ratios of citric acid with respect to the total metal content. A single phase was obtained at temperature as low as 1100°C. To verify the chemical stability, all the sintered oxides were exposed to CO2 and the phase composition of the resulting specimens was investigated using X-ray diffraction (XRD) and field emission scanning electron microscopy (FE-SEM). Fuel cell polarization curves on symmetric Pt/BZY20/Pt cells of different thickness were measured at intermediate temperatures (500-700°C).

Design and fabrication of a chemically-stable proton conductor bilayer electrolyte for intermediate temperature solid oxide fuel cells (IT-SOFCs)

2008 ◽  
Vol 1 (3) ◽  
pp. 355 ◽  
Author(s):  
Emiliana Fabbri ◽  
Daniele Pergolesi ◽  
Alessandra D'Epifanio ◽  
Elisabetta Di Bartolomeo ◽  
Giuseppe Balestrino ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Proton Conductor ◽  
Solid Oxide ◽  
Intermediate Temperature ◽  
Oxide Fuel ◽  
Bilayer Electrolyte
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