Three-Layered Membranes for Planar Solid Oxide Fuel Cells of the Electrolyte-Supported Design: Characteristics and Applications

Agarkova, E. A.; Агарков, Д. А.; Бурмистров, И. Н.; Zadorozhnaya, O. Yu.; Yalovenko, D.V.; Nepochatov, Yu. K.; Бредихин, С. И.

doi:10.1134/s1023193520020020

Cited by 18 publications

(6 citation statements)

References 16 publications

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“…The control of the layer properties and their interfaces is important and should be further explored to achieve multilayer structures combining high ion permeation, high electronic conductivity, and high chemical, mechanical, and thermal stability. ,,− ,− …”

Section: Discussionmentioning

confidence: 99%

Direct Conversion of Methane to C₂Hydrocarbons in Solid-State Membrane Reactors at High Temperatures

et al. 2021

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Direct conversion of methane to C2 compounds by oxidative and nonoxidative coupling reactions has been intensively studied in the past four decades; however, because these reactions have intrinsic severe thermodynamic constraints, they have not become viable industrially. Recently, with the increasing availability of inexpensive “green electrons” coming from renewable sources, electrochemical technologies are gaining momentum for reactions that have been challenging for more conventional catalysis. Using solid-state membranes to control the reacting species and separate products in a single step is a crucial advantage. Devices using ionic or mixed ionic–electronic conductors can be explored for methane coupling reactions with great potential to increase selectivity. Although these technologies are still in the early scaling stages, they offer a sustainable path for the utilization of methane and benefit from the advances in both solid oxide fuel cells and electrolyzers. This review identifies promising developments for solid-state methane conversion reactors by assessing multifunctional layers with microstructural control; combining solid electrolytes (proton and oxygen ion conductors) with active and selective electrodes/catalysts; applying more efficient reactor designs; understanding the reaction/degradation mechanisms; defining standards for performance evaluation; and carrying techno-economic analysis.

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Section: Discussionmentioning

confidence: 99%

Direct Conversion of Methane to C₂Hydrocarbons in Solid-State Membrane Reactors at High Temperatures

et al. 2021

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“…In this regard, attempts are being made to reduce the operating temperature of SOFCs. The possibility of using thin-film ceramic materials to reduce ohmic losses is considered as one of the approaches [241,242]. Another alternative approach is the preparation of composite electrolytes including a low-melting oxygen-conducting component.…”

Section: Membranes In Fuel Cellsmentioning

confidence: 99%

Membrane Technologies for Decarbonization

Alent’ev

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et al. 2021

Membr. Membr. Technol.

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The deteriorating environmental situation has stimulated the world community to develop research related to the decarbonization of the economy and hydrogen energy. These two areas are essentially focused on membrane technologies, which play a crucial role in solving key tasks for these areas. This review is devoted to this research. The first part describes various membrane technologies aimed at capturing CO 2 from the most common gas mixtures, primarily containing nitrogen, methane, and hydrogen. In recent years, studies related to the amine purification of CO 2 , including membrane technologies, and the use of porous membranes filled with ionic liquids has also been intensively developed. Electromembrane technologies are also being developed that allow not only capture of CO 2 but also to process it into fuel or valuable chemicals. The course taken by several developed countries, including Russia, for the development of hydrogen energy includes the production, purification of hydrogen, and its conversion into energy. It should be noted that membrane technologies are fundamentally important for the development of each of these areas. Thus, the evolution of hydrogen is possible with the use of polymer membranes, and for deep purification and production of high-purity hydrogen by membrane catalysis; membranes based on palladium alloys are used. Finally, fuel cells are developed to produce energy from hydrogen, the most important part of which are proton or oxygen-conducting membranes.

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“…For the contact material conductivity tests, platinum electrodes were deposited onto one side of yttria-stabilized zirconia (YSZ) solid electrolyte ceramics ( 21 mm) produced by NEVZ-Ceramics (10). The LSM strips (width of 4-5 mm) were screenprinted (Mat S45, Ekra, Germany) onto the surface of YSZ electrolyte with Pt electrodes and dried for 1 hour at 100 °C.…”

Section: Paste Fabrication and Conductivity Testsmentioning

confidence: 99%

“…The research group at the Osipyan Institute of Solid State Physics RAS conducts systematic R&D in the field of SOFC-based systems, including processing and characterization of novel materials and SOFC components (9)(10)(11)(12), fabrication of the membrane-electrode assemblies (MEAs) (2,13), and testing and optimization of the planar SOFC stacks and power generators. An important task in this direction is to ensure stable electrical and mechanical contacts between the steel current collector with oxide protective coating and SOFC cathode, enabling at least 10,000 h operation (14,15).…”

Section: Introductionmentioning

confidence: 99%

Optimization of Contact Cathode Composition Based on La0.8Sr0.2MnO3±δ for SOFC Stacks

et al. 2021

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The formation of stable contact layers with minimum electrical resistivity at the electrode/interconnector interface is an important task for planar SOFC stack fabrication. This work was centered on the search for optimum processing conditions of the La0.8Sr0.2MnO3±δ (LSM) based contact pastes without inorganic additives. The ball-milling conditions and contact paste composition were optimized taking into account the LSM particle size, sintering, a possibility of partial phase decomposition, and electrical conductivity of the resultant cathode contacts. Testing of the model SOFC stack with Crofer 22H interconnectors revealed sufficient adhesion, porosity, conductivity, and stability of porous LSM contact layers.

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Three-Layered Membranes for Planar Solid Oxide Fuel Cells of the Electrolyte-Supported Design: Characteristics and Applications

Cited by 18 publications

References 16 publications

Direct Conversion of Methane to C₂Hydrocarbons in Solid-State Membrane Reactors at High Temperatures

Direct Conversion of Methane to C₂Hydrocarbons in Solid-State Membrane Reactors at High Temperatures

Membrane Technologies for Decarbonization

Optimization of Contact Cathode Composition Based on La0.8Sr0.2MnO3±δ for SOFC Stacks

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Three-Layered Membranes for Planar Solid Oxide Fuel Cells of the Electrolyte-Supported Design: Characteristics and Applications

Cited by 18 publications

References 16 publications

Direct Conversion of Methane to C2Hydrocarbons in Solid-State Membrane Reactors at High Temperatures

Direct Conversion of Methane to C2Hydrocarbons in Solid-State Membrane Reactors at High Temperatures

Membrane Technologies for Decarbonization

Optimization of Contact Cathode Composition Based on La0.8Sr0.2MnO3±δ for SOFC Stacks

Contact Info

Product

Resources

About

Direct Conversion of Methane to C₂Hydrocarbons in Solid-State Membrane Reactors at High Temperatures

Direct Conversion of Methane to C₂Hydrocarbons in Solid-State Membrane Reactors at High Temperatures