Regularities of high-temperature oxidation of current collectors of solid oxide fuel cells due to diffusion processes in subsurface regions

2016 ◽  
Vol 52 (7) ◽  
pp. 678-684 ◽  
Author(s):  
N. V. Demeneva ◽  
D. V. Matveev ◽  
V. V. Kharton ◽  
S. I. Bredikhin
Keyword(s):  
Fuel Cells ◽  
High Temperature ◽  
Solid Oxide Fuel Cells ◽  
High Temperature Oxidation ◽  
Diffusion Processes ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Temperature Oxidation ◽  
Current Collectors

High-Temperature Oxidation of AISI441 Ferritic Stainless Steel for Solid Oxide Fuel Cells

2021 ◽  
Vol 1016 ◽  
pp. 1381-1385
Author(s):  
Roberto Spotorno
Keyword(s):  
Stainless Steel ◽  
Fuel Cells ◽  
Weight Gain ◽  
High Temperature ◽  
Solid Oxide Fuel Cells ◽  
Ferritic Stainless Steel ◽  
High Temperature Oxidation ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Temperature Oxidation

Several ferritic stainless steel grades are widely studied and used in solid oxide fuel cells (SOFCs) technology as interconnect materials. Their high-temperature oxidation behavior is interesting to evaluate their applicability at SOFCs operating conditions and to design degradation tests and models predicting the lifetime of a SOFC stack. In this work the AISI441 grade was oxidized in static air at 850°C to study its oxidation kinetic by weight gain measurements. It was found a parabolic growth with a rate constant of 9.42 x 10-14 g2cm-4s-1. Data calculated using the diffusion coefficients of the species involved in the oxidation process resulted in higher weight gain. Discrepancies between the measurements and the model were corrected taking into account the chromium volatilization.

scholarly journals Trends in electrode development for next generation solid oxide fuel cells

2016 ◽  
Vol 4 (46) ◽  
pp. 17913-17932 ◽  
Author(s):  
Wang Hay Kan ◽  
Alfred Junio Samson ◽  
Venkataraman Thangadurai
Keyword(s):  
Fuel Cells ◽  
High Temperature ◽  
Solid Oxide Fuel Cells ◽  
Vital Role ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Electrolysis Cells ◽  
Electrochemical Devices ◽  
Solid Oxide Electrolysis Cells ◽  
By Products

High temperature electrochemical devices, such as solid oxide fuel cells (SOFCs), will play a vital role in the future green and sustainable energy industries due to direct utilization of carbon-based fuels and their ability to couple with renewable energies to convert by-products into valuable fuels using solid oxide electrolysis cells (SOECs).

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