Characterization of Anode-Supported Solid Oxide Fuel Cells With Nd2NiO4 Cathodes

2009 ◽  
Vol 6 (4) ◽  
Author(s):  
V. A. C. Haanappel ◽  
C. Lalanne ◽  
A. Mai ◽  
F. Tietz
Keyword(s):  
Grain Size ◽  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Current Density ◽  
Gas Diffusion ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Sintering Conditions ◽  
Diffusion Problems

A systematic study was initiated of anode-supported solid oxide fuel cells (SOFCs) with Nd2NiO4 cathodes. This type of cathode, a mixed conducting K2NiF4-type material, can be considered as a candidate for SOFC applications. In this study, the influence of (1) the presence of a Ce0.8Gd0.2O1.9 (CGO) interlayer between the electrolyte and the cathode, (2) sintering conditions, and (3) the grain size of the powder on the performance of SOFCs with Nd2NiO4 cathodes was investigated in more detail. Results from current density-voltage characteristics and permeation and gas diffusion measurements showed that the electrochemical performance was promising for SOFCs including a CGO interlayer and a Nd2NiO4 cathode (prepared with a powder with a d50 of 0.5A∕cm2 or 0.8μm) sintered at 1100°C or higher; current density at 800°C and 700mV between 1.2 and 1.3A∕cm2. The microstructure of the cathode was such that no gas diffusion problems occurred.

ChemInform Abstract: Characterization of Thin Films for Solid Oxide Fuel Cells Facilitated by Micropatterning

ChemInform ◽  
2012 ◽  
Vol 43 (26) ◽  
pp. no-no
Author(s):  
Thomas Ryll ◽  
Jennifer L. M. Rupp ◽  
Anja Bieberle-Hutter ◽  
Henning Galinski ◽  
Ludwig J. Gauckler
Keyword(s):  
Thin Films ◽  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Abstract Characterization

Characterization of tantalum doped lanthanum strontium ferrite as cathode materials for solid oxide fuel cells

2015 ◽  
Vol 648 ◽  
pp. 154-159 ◽  
Author(s):  
Isabella Natali Sora ◽  
Valeria Felice ◽  
Francesca Zurlo ◽  
Silvia Licoccia ◽  
Elisabetta Di Bartolomeo
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Cathode Materials ◽  
Strontium Ferrite ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Lanthanum Strontium

Effect of Bi-Layer Interconnector Design on the Current Density of Solid Oxide Fuel Cells

2009 ◽  
Author(s):  
Qiuyang Chen ◽  
Jian Zhang ◽  
Qiuwang Wang ◽  
Min Zeng
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Current Density ◽  
Porous Electrode ◽  
Solid Oxide ◽  
The Novel ◽  
Oxide Fuel ◽  
Plane Normal ◽  
Three Phase ◽  
Porous Anode

The concentration gradient of fuel and oxidant gas is great in the plane normal to the solid oxide fuel cells (SOFC) three-phase-boundary (TPB) layer, especially in the porous electrode. We present a novel interconnector design, termed bilayer interconnector, for SOFC. It can distribute the fuel and air gas in the plane normal to the SOFC TPB layer. In this paper, we develop a 3D model to study the current density of the SOFC with conventional and novel bi-layer interconnectors. The numerical results show that the novel SOFC design Rib1 can slightly enhance the mass transfer in the porous anode and current density. The novel SOFC design Rib2 can improve the current density significantly under low electrical conductivity of interconnector.

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