Carbon deposition on nickel cermet anodes of solid oxide fuel cells operating on carbon monoxide fuel

2013 ◽  
Vol 225 ◽  
pp. 1-8 ◽  
Author(s):  
Chen Li ◽  
Yixiang Shi ◽  
Ningsheng Cai
Keyword(s):  
Carbon Monoxide ◽  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Carbon Deposition ◽  
Solid Oxide ◽  
Oxide Fuel

scholarly journals Effects of Sn doping on the manufacturing, performance and carbon deposition of Ni/ScSZ cells in solid oxide fuel cells

2020 ◽  
Vol 45 (51) ◽  
pp. 27575-27586 ◽  
Author(s):  
Nor Anisa Arifin ◽  
Lina Troskialina ◽  
Abd Halim Shamsuddin ◽  
Robert Steinberger-Wilckens
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Carbon Deposition ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Sn Doping ◽  
Manufacturing Performance

scholarly journals Analysis of Soot Deposition Mechanisms on Nickel-Based Anodes of SOFCs in Single-Cell and Stack Environment

Processes ◽  
2020 ◽  
Vol 8 (11) ◽  
pp. 1370
Author(s):  
Konrad Motylinski ◽  
Marcin Blesznowski ◽  
Marek Skrzypkiewicz ◽  
Michal Wierzbicki ◽  
Agnieszka Zurawska ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Single Cell ◽  
Carbon Deposition ◽  
Soot Formation ◽  
Solid Oxide ◽  
Formation Mechanisms ◽  
Oxide Fuel ◽  
Gas Velocity ◽  
Anodic Gas

Solid oxide fuel cells (SOFCs) can be fueled with various gases, including carbon-containing compounds. High operating temperatures, exceeding 600 °C, and the presence of a porous, nickel-based SOFC anode, might lead to the formation of solid carbon particles from fuels such as carbon monoxide and other gases with hydrocarbon-based compounds. Carbon deposition on fuel electrode surfaces can cause irreversible damage to the cell, eventually destroying the electrode. Soot formation mechanisms are strictly related to electrochemical, kinetic, and thermodynamic conditions. In the current study, the effects of carbon deposition on the lifetime and performance of SOFCs were analyzed in-operando, both in single-cell and stack conditions. It was observed that anodic gas velocity has an impact on soot formation and deposition, thus it was also studied in depth. Single-anode-supported solid oxide fuel cells were fueled with gases delivered in such a way that the initial velocities in the anodic compartment ranged from 0.1 to 0.7 m/s. Both cell operation and post-mortem observations proved that the carbon deposition process accelerates at higher anodic gas velocity. Furthermore, single-cell results were verified in an SOFC stack operated in carbon-deposition regime by dry-coupling with a downdraft 150 kWth biomass gasifier.

Carbon Deposition and Sulfur Tolerant La0.4Sr0.5Ba0.1TiO3–La0.4Ce0.6O1.8 Anode Catalysts for Solid Oxide Fuel Cells

2015 ◽  
Vol 151 ◽  
pp. 81-88 ◽  
Author(s):  
Yi-Fei Sun ◽  
Jian-Hui Li ◽  
Shao-Hua Cui ◽  
Karl T. Chuang ◽  
Jing-Li Luo
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Carbon Deposition ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Anode Catalysts

Correlation between Crystalline Phase of ScSZ and Carbon Deposition Behavior Over Ni-ScSZ Anode for Internal Reforming of Solid Oxide Fuel Cells

2019 ◽  
Vol 25 (2) ◽  
pp. 2091-2098
Author(s):  
Toshiaki Matsui ◽  
Tatsuya Iida ◽  
Ryuji Kikuchi ◽  
Mitsunobu Kawano ◽  
Toru Inagaki ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Crystalline Phase ◽  
Carbon Deposition ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Deposition Behavior ◽  
Internal Reforming

Numerical Simulations of Solid Oxide Fuel Cells Operating on Coal Syngas: A Parametric Study

2009 ◽  
Author(s):  
Francisco Elizalde-Blancas ◽  
S. Raju Pakalapati ◽  
F. Nihan Cayan ◽  
Ismail B. Celik
Keyword(s):  
Carbon Monoxide ◽  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Numerical Simulations ◽  
Alternative Fuels ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Coal Syngas ◽  
Internal Reforming ◽  
Wide Range

Fuel cells are considered to be one of the main sources of future power supply around the world because of their many desirable features; technology virtually free of pollution, the ability to use alternative fuels other than fossil fuels, and higher efficiencies than combustion engines. Solid Oxide Fuel Cells (SOFCs) can operate on a wide range of fuels, particularly with coal syngas. However, several issues have to be solved before SOFC’s operating on coal syngas can be introduced into the market as a reliable and cost viable technology. Numerical simulations can be used in conjunction with experiments to assist in resolution of such barriers. In the present work, a three-dimensional model is used to study the performance of a SOFC running on coal syngas operating at various conditions. The code is capable of simulating several species in the fuel stream, such as methane, steam, carbon monoxide, hydrogen, carbon dioxide. Due to the presence of hydrogen and carbon monoxide, simultaneous electrochemical oxidation of both fuels is considered. Internal reforming and water gas shift reaction are other processes that are taken into account. Simulations of typical anode-supported button cells are performed to assess the effects of cell operating temperature, fuel composition and CO electrochemistry on the performance of the button SOFCs.

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