A facile synthesis of high quality nanostructured CeO2 and Gd2O3-doped CeO2 solid electrolytes for improved electrochemical performance

2015 ◽  
Vol 17 (21) ◽  
pp. 14193-14200 ◽  
Author(s):  
Yu-Lin Kuo ◽  
Yu-Ming Su ◽  
Hung-Lung Chou
Keyword(s):  
Solid Oxide Fuel Cells ◽  
Atmospheric Pressure ◽  
Solid Electrolytes ◽  
Atmospheric Pressure Plasma ◽  
Plasma Jet ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Facile Synthesis ◽  
High Quality ◽  
Doped Ceo2

A novel atmospheric pressure plasma jet (APPJ) was applied to synthesize high quality CeO2 and Gd2O3-doped CeO2 (GDC) nanoparticles (NPs) using a composite nitrate salt solution as a precursor. The result shows that Gd helps in improving Ce0.9Gd0.1O2 conductivity, making them candidate materials for electrolytes in solid oxide fuel cells.

Long-Term Electric Conductivity of (Nb,Y)-Doped Bi2O3 Solid Electrolytes for Solid Oxide Fuel Cells

2012 ◽  
Vol 509 ◽  
pp. 111-113 ◽  
Author(s):  
Wen Cheng J. Wei
Keyword(s):  
Phase Transformation ◽  
Solid Oxide Fuel Cells ◽  
Electric Conductivity ◽  
Solid Electrolytes ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Surface Evaporation ◽  
Delta Phase ◽  
Phase Retention

Two oxides, Y2O3 and Nb2O5, were doped into Bi2O3-based electrolyte in a composition of (Bi 1-x-y,Nb x,Y y)2O 3, where (x+y)=0.12 to 0.2 and the x:y ratio 3:1 to 1:3. The delta-phase retention, the oxygen vacancy order-disorder transformation, the ionic and electric conductivity were investigated by various techniques. The long-term conductivity of the dense electrolytes was determined showing moderate degradation due to phase transformation possible triggered by surface evaporation of Bi-oxide. The best retention of the conductivity is about 60% after 300 hr test.

Conductivity Analysis on Hetero-Junction of Multiple Nano-Structural Layers

2013 ◽  
Vol 573 ◽  
pp. 13-17
Author(s):  
Wen Cheng J. Wei
Keyword(s):  
Electrochemical Performance ◽  
Solid Oxide Fuel Cells ◽  
Solid Electrolytes ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Cathode Structure ◽  
Electronic Performance ◽  
Co Precipitation ◽  
Ysz Electrolyte ◽  
Perovskite Type

Ionic/electronic performance of various cathodes in contact with solid electrolytes used for intermediate-temperature (500-750°C) solid oxide fuel cells (SOFCs) is investigated. Perovskite-type material, e.g. (La,Sr)(Co,Fe)O3 as abbreviated LSCF, mixed with Gd-doped CeO2 (GDC) particulates in various size ranges has been synthesized by Pichini and co-precipitation methods. The composites are assembled into multilayer cathode structure, which is arranged in a sequence of composite/GDC/ YSZ electrolyte. The microstructure of the interface, electrochemical performance, and interface conductivity of various cell combinations are investigated.

High performance composite interconnect La0.7Ca0.3CrO3/20mol% ReO1.5 doped CeO2 (Re=Sm, Gd, Y) for solid oxide fuel cells

2007 ◽  
Vol 164 (1) ◽  
pp. 293-299 ◽  
Author(s):  
Xiaoliang Zhou ◽  
Feijun Deng ◽  
Mingxing Zhu ◽  
Guangyao Meng ◽  
Xingqin Liu
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
High Performance ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
High Performance Composite ◽  
Doped Ceo2

Optimized Sol–Gel Routes to Synthesize Yttria-Stabilized Zirconia Thin Films as Solid Electrolytes for Solid Oxide Fuel Cells

2012 ◽  
Vol 24 (23) ◽  
pp. 4540-4548 ◽  
Author(s):  
Emilie Courtin ◽  
Philippe Boy ◽  
Clément Rouhet ◽  
Luc Bianchi ◽  
Eric Bruneton ◽  
...  
Keyword(s):  
Thin Films ◽  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Electrolytes ◽  
Sol Gel ◽  
Solid Oxide ◽  
Yttria Stabilized Zirconia ◽  
Oxide Fuel ◽  
Stabilized Zirconia
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