16 Ceramic electrolytes for solid oxide fuel cells (SOFCs) as alternative energy sources

2021 ◽  
pp. 205-236
Author(s):  
Marija Stojmenović ◽  
Vladimir Dodevski
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Alternative Energy ◽  
Solid Oxide ◽  
Energy Sources ◽  
Oxide Fuel ◽  
Alternative Energy Sources ◽  
Ceramic Electrolytes

Synthesis and Characterization of CeO2doped with Sm2O3and Eu2O3for the use in SOFCs

MRS Advances ◽  
2018 ◽  
Vol 3 (32) ◽  
pp. 1855-1861 ◽  
Author(s):  
Alena Borisovna Kharissova ◽  
Moisés Hinojosa Rivera ◽  
Oxana V. Kharissova
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Alternative Energy ◽  
Fossil Fuels ◽  
New Technologies ◽  
Low Cost ◽  
Solid Oxide ◽  
Spray Pyrolysis Method ◽  
Oxide Fuel ◽  
Alternative Energy Sources

ABSTRACTTo free ourselves from the use of fossil fuels that are highly polluting, life-threatening and not easily regenerated, new technologies are being developed to obtain alternative energy sources more efficiently. Among these technologies, there is the option to improve the performance of solid oxide fuel cells (SOFCs) to make them highly energy efficient. Solid oxide fuel cells (SOFCs) have attracted much attention because they are environmentally benign, sustainable, generate low emissions and have relative low cost. However, conventional SOFCs with yttria-stabilized zirconia (YSZ) electrolyte require high operating temperatures (800-1000°C), which often lead to material degradation problems. Given that the greatest disadvantage of SOFCs is their high operating temperature, samples of CeO2were synthesized by spray pyrolysis method and doped with Sm2O3and Eu2O3to improve the ionic conductivity of the electrolyte so that it can operate at lower temperatures without losing its efficiency. The samples were analyzed using SEM, EDS, TEM. Further research will be made by small angle DRX, AFM, EIS and a prototype will be built to test the working temperature of the electrolyte.

A functional micro-solid oxide fuel cell with a 10 nm-thick freestanding electrolyte

2017 ◽  
Vol 5 (35) ◽  
pp. 18414-18419 ◽  
Author(s):  
Jong Dae Baek ◽  
Kang-Yu Liu ◽  
Pei-Chen Su
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide Fuel Cell ◽  
State Of The Art ◽  
Operating Temperature ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Ceramic Electrolytes ◽  
Ion Conducting

State-of-the-art micro-solid oxide fuel cells (micro-SOFCs) use ion-conducting ceramic electrolytes with thicknesses in the tens to hundreds of nanometers scale, which enabled a drastic decrease in operating temperature without a decrease in cell performance.

scholarly journals Progress in Metal-supported Solid Oxide Fuel Cells

Ceramist ◽  
2021 ◽  
Vol 24 (4) ◽  
pp. 356-367
Author(s):  
Young-Wan Ju
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Energy Conversion ◽  
Alternative Energy ◽  
Energy Conversion Efficiency ◽  
High Energy ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Advantages And Disadvantages ◽  
Metal Support

Solid oxide fuel cells (SOFCs) have been attracting much attention as alternative energy conversion devices due to their high energy conversion efficiency and fuel flexibility. In current SOFCs, Ni-based Cermet anode, solid oxide electrolyte and ceramic cathode have been used. Since all components are ceramic-based materials, there is a problem in that mechanical strength and durability against thermal shock. In order to solve this problem, metal-supported solid oxide fuel cells have designed. Metal-supported solid oxide fuel cells provide significant advantages such as low materials cost, ruggedness, and tolerance to rapid thermal cycling and redox cycling. This paper review the types of metal supports used in metal-based solid oxide fuel cells and the advantages and disadvantages of each metal support.

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