High-performance SrNb0.1Co0.9−xFexO3−δperovskite cathodes for low-temperature solid oxide fuel cells

2014 ◽  
Vol 2 (37) ◽  
pp. 15454-15462 ◽  
Author(s):  
Yinlong Zhu ◽  
Jaka Sunarso ◽  
Wei Zhou ◽  
Shanshan Jiang ◽  
Zongping Shao
Keyword(s):  
Solid Oxide Fuel Cells ◽  
Peak Power ◽  
High Performance ◽  
Reduction Reaction ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Thermal Expansion Coefficients ◽  
Low Thermal Expansion ◽  
Orr Activity ◽  
Expansion Coefficients

A novel family of perovskites, SrNb0.1Co0.9−xFexO3−δ(SNCF, 0.1 ≤x≤ 0.5), shows not only high oxygen reduction reaction (ORR) activity at operating temperatures below 600 °C (e.g.peak power density of 1587 mW cm−2at 600 °C) but also low thermal expansion coefficients (TECs) and improved CO2resistivity.

Nano-film coated cathode functional layers towards high performance solid oxide fuel cells

2018 ◽  
Vol 6 (25) ◽  
pp. 11811-11818 ◽  
Author(s):  
Mingi Choi ◽  
Jongseo Lee ◽  
Wonyoung Lee
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
High Performance ◽  
Reduction Reaction ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Composite Electrodes ◽  
Phase Boundaries ◽  
Infiltration Process

Nano-structured composite electrodes, from a carefully conducted infiltration process, are one of the most promising electrode structures for intermediate temperature solid oxide fuel cells (IT-SOFCs), due to their ability to promote the oxygen reduction reaction (ORR) and enlarge triple phase boundaries (TPBs).

Evaluation of Electrode Performances of Single-Chamber Solid Oxide Fuel Cells

2006 ◽  
Vol 301 ◽  
pp. 155-158 ◽  
Author(s):  
Mikihiro Hori ◽  
Keisuke Nagasaka ◽  
Masaru Miyayama ◽  
Giuseppe Trunfio ◽  
Enrico Traversa
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Single Chamber ◽  
Thermal Expansion Coefficients ◽  
Ion Conductivities ◽  
Interfacial Structures ◽  
Expansion Coefficients ◽  
Ceria Electrolyte

The interfacial resistances of La1-xSrxCo1-yFeyO3-δ (denoted LSCF(10(1-x)/10x/10(1-y)/10y)) cathodes, and the catalytic activities of a Ni-Ce0.85Y0.15O1.925 (Ni-YDC) anode and an LSCF(2/8/8/2) cathode of a single-chamber solid oxide fuel cells (SOFCs) were investigated. LSCF cathodes with high oxide ion conductivities gave low interfacial resistances. LSCF cathodes with suitable thermal expansion coefficients formed favorable interfacial structures with a ceria-based electrolyte. Ni-YDC showed a higher conversion efficiency for CH4 and a lower selectivity for CO2 than LSCF(2/8/8/2). The single-chamber SOFC based on the Sm-doped ceria electrolyte with the Ni-YDC anode and LSCF(2/8/8/2) cathode showed a maximum power density of 186 mW/cm2 at 800°C.

CROFER 22 H

Alloy Digest ◽  
2012 ◽  
Vol 61 (5) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Solid Oxide Fuel Cells ◽  
High Performance ◽  
Heat Treating ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
High Mechanical Strength ◽  
Excellent Corrosion Resistance ◽  
Niobium Titanium ◽  
Processing Properties

Abstract Crofer 22 H is an improved high performance material for use in high-temperature solid oxide fuel cells (SOFCs). The alloy contains 20% to 24% chromium plus tungsten, niobium, titanium, and lanthanum. It has excellent corrosion resistance at temperatures to 900 C (1652 F), good electrical conductivity of the oxide layer, and high mechanical strength at service temperature. It also has good processing properties. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-1121. Producer or source: ThyssenKrupp VDM GmbH.

Defective Sr0.9Mo0.9O3-δ perovskites with exsolved Ni nanoparticles as high-performance composite anodes for solid-oxide fuel cells

2021 ◽  
Author(s):  
Ana Laura Larralde ◽  
Loreto Troncoso ◽  
M. Consuelo Alvarez-Galvan ◽  
Vanessa Cascos ◽  
Maria Teresa Fernandez-Diaz ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Anode Material ◽  
High Performance ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Ni Nanoparticles ◽  
High Performance Composite ◽  
Composite Anodes ◽  
A Site

An A-site deficient perovskite with metallic Ni in exsolution, Ni-Sr0.9Mo0.9O3-δ, has been prepared, characterized and tested as an anode material in intermediate-temperature solid-oxide fuel cells (IT-SOFCs). It was obtained by...

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