A modeling investigation on the electrochemical behavior of porous mixed conducting cathodes for solid oxide fuel cells

2005 ◽  
Vol 139 (1-2) ◽  
pp. 35-43 ◽  
Author(s):  
Yanwei Zeng ◽  
Changan Tian ◽  
Limei Bao
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Electrochemical Behavior ◽  
Solid Oxide ◽  
Oxide Fuel

scholarly journals Electrochemical Behavior of Nanostructured La0.8Sr0.2MnO3as Cathodes for Solid Oxide Fuel Cells

2017 ◽  
Vol 78 (1) ◽  
pp. 667-675
Author(s):  
Joaquín Sacanell ◽  
Joaquín Hernández Sánchez ◽  
Adrián Ezequiel Rubio Lopez ◽  
Hernán Martinelli ◽  
Jimena Siepe ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Electrochemical Behavior ◽  
Solid Oxide ◽  
Oxide Fuel

Electrochemical Behavior of (Fe,Ni)Ox-Based Anodes for Solid-Oxide Fuel Cells in Methane-Containing Atmospheres

2020 ◽  
Vol 56 (2) ◽  
pp. 147-155
Author(s):  
V. A. Kolotygin ◽  
A. I. Ivanov ◽  
D. V. Matveev ◽  
S. I. Bredikhin ◽  
V. V. Kharton
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Electrochemical Behavior ◽  
Solid Oxide ◽  
Oxide Fuel

Effect of Feedstock Type on Microstructure and Polarization of Plasma Sprayed LSM Cathode for Solid Oxide Fuel Cells

2013 ◽  
Vol 683 ◽  
pp. 514-517
Author(s):  
Xiao Ming Wang ◽  
Chen Fang ◽  
Zhou Can Zhu ◽  
Ning Li
Keyword(s):  
Fuel Cells ◽  
Impedance Spectroscopy ◽  
Surface Morphology ◽  
Solid Oxide Fuel Cells ◽  
Electrochemical Behavior ◽  
Surface Resistance ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Liquid Suspension ◽  
Plasma Sprayed

Plasma spraying is employed to prepare porous La0.8Sr0.2MnO3 (LSM) cathode for solid oxide fuel cells (SOFCs) using both liquid suspension and solid feedstocks. The surface morphology and microstructure of the LSM deposits are characterized by SEM. The electrochemical behavior is investigated through the impedance spectroscopy. The specific surface resistance of 0.36 Ω•cm2 and 0.74 was obtained at 1000oC for SPS and APS LSM cathodes, respectively. The polarization of SPS LSM cathode is lower than APS LSM cathode by a factor of 2 to 2.4 in the temperature range from 850 to 1000 oC.

Electrochemical Behavior of Metal-Supported SOFCs Under High Fuel Utilization and Their Durability

2012 ◽  
Vol 9 (2) ◽  
Author(s):  
I. Antepara ◽  
L. Diaz ◽  
M. Rivas ◽  
L. Otaegi ◽  
N. Gomez ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Oxidation Resistance ◽  
Electrochemical Behavior ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Fuel Utilization ◽  
Main Variable ◽  
Highly Porous ◽  
Low Porosity

The aim of this project was to study whether the oxidation resistance of cells is affected while working under high fuel utilization. A previous study measured the weak oxidation resistance for very porous samples (measured porosity ∼ 70%) in H2 with high H2O content (over 50%) in the interval from 600 to 800 °C. Thus, additional tests were carried out with cells. Crofer22APU-supported solid oxide fuel cells (SOFCs) were produced by scalable cost competitive routes. One of the highly porous cells (calculated porosity 45%) was run under high fuel utilization conditions (calculated fuel utilization 56%), and a further two in H2-50%H2O. Another cell, with low porosity (calculated porosity 20%), was kept working in the same H2-50%H2O atmosphere for many hours. Durability tests with cells of different porosities confirmed that this is the main variable concerning degradation issues while working under high fuel utilization.

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