Interconnects for Solid Oxide Fuel Cells

Brouzgou, A.; Demin, A.; Tsiakaras, Panagiotis

doi:10.1007/978-3-319-46146-5_4

Cited by 10 publications

(5 citation statements)

References 114 publications

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“…In the context of the fabrication of solid-based electrolytic and fuel cell system parts (electrodes, interconnects, and electrolytes), DIW has emerged as the key method for addressing the operational issues of SOFCs [114][115][116]. DIW enables a significant increase in the interaction area between electrodes/electrolytes and interconnects/electrodes, which still constitutes a hindering factor to reducing SOFCs operating temperatures [2,3,117,118]; DIW also allows for architecture optimization and construction with lower costs and less complicated processes.…”

Section: Ceramic-based Inksmentioning

confidence: 99%

“…The electrodes of fuel cells and super capacitors are confronted with water management and mass transport concerns and other limitations. Additionally, the structures of batteries and solid oxide fuel cells suffer from having poor densities in terms of their electrode/electrolyte interfaces [2,3]. Even though most electrochemical devices follow small-scale commercialization plans, the limitations that frame their optimum operation and their further commercialization should be overcome.…”

Section: Introductionmentioning

confidence: 99%

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Direct Ink Writing for Electrochemical Device Fabrication: A Review of 3D-Printed Electrodes and Ink Rheology

Polychronopoulos,

Brouzgou

2024

Catalysts

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Three-dimensional printed electrodes seem to overcome many structural and operational limitations compared to ones fabricated with conventional methods. Compared to other 3D printing techniques, direct ink writing (DIW), as a sub-category of extrusion-based 3D printing techniques, allows for easier fabrication, the utilization of various materials, and high flexibility in electrode architectures with low costs. Despite the conveniences in fabrication procedures that are facilitated by DIW, what qualifies an ink as 3D printable has become challenging to discern. Probing rheological ink properties such as viscoelastic moduli and yield stress appears to be a promising approach to determine 3D printability. Yet, issues arise regarding standardization protocols. It is essential for the ink filament to be extruded easily and continuously to maintain dimensional accuracy, even after post-processing methods related to electrode fabrication. Additives frequently present in the inks need to be removed, and this procedure affects the electrical and electrochemical properties of the 3D-printed electrodes. In this context, the aim of the current review was to analyze various energy devices, highlighting the type of inks synthesized and their measured rheological properties. This review fills a gap in the existing literature. Thus, according to the inks that have been formulated, we identified two categories of DIW electrode architectures that have been manufactured: supported and free-standing architectures.

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Section: Ceramic-based Inksmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Direct Ink Writing for Electrochemical Device Fabrication: A Review of 3D-Printed Electrodes and Ink Rheology

Polychronopoulos,

Brouzgou

2024

Catalysts

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“…From the above discussion, it is known that the formation of oxygen vacancies in the crystal and the reaction of the water vapour molecules with the oxygen vacancies synergistically produce proton conductivity [59]. Although the oxides doped with cerium oxide and zirconia and other fluorspar structures mentioned above also have many oxygen vacancies and constitute high-temperature oxygen ion conductors, the proton conductivity of cerium oxide is not obvious due to its low affinity with water molecules, while zirconia basically has no proton conductivity.…”

Section: The Proton Conducting Electrolytementioning

confidence: 99%

The electrolyte materials for SOFCs of low-intermediate temperature: Review

Wang

Lyu

Chu

et al. 2019

Materials Science and Technology

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The low-temperature trend of solid oxide fuel cells is necessary for its commercialisation, and the electrolyte materials with excellent properties at low and intermediate temperatures, which have become the focus of research. In this paper, the conduction mechanism, performance and research status of each kind of electrolyte are reviewed, and their advantages, disadvantages and applications are discussed. Finally, the development direction of low-intermediate temperature electrolyte materials and the problems to be solved are pointed out.

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“…Solid Oxide Fuel Cells (SOFCs) are electrochemical devices which are able to convert the chemical energy of the feed stream to electricity embodied in combined heat and power application [1]. These devices became popular during recent decades due to the great variety of fuels that they can be fed with (such as ethanol, methanol, etc.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Biogas Origin on the Electricity Production by Solid Oxide Fuel Cells

Prodromidis

Coutelieris

2021

Applied Sciences

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This work simulates electricity production in a Solid Oxide Fuel Cell (SOFC)-based power plant, fed by biogas of various compositions. Steam reforming of the gas feed stream is used to produce the required supply for the SOFC. Given the constraints of the feed stream compositions, resulting from the origin of biogas, i.e., by the biomass from which the biogas has been produced as well as by the operating conditions selected for its production, the overall plant performance is modelled in terms of energy and exergy. The model provides results on the efficiency, power output and thermal behavior of the system, thus presenting the potential to offer great advantages in generating electricity from biogas and reducing the environmental impact. This research study presents the efficiency of such a system in terms of energy and exergy, by considering several values of the operational parameters (extensions of reactions that take place in the apparatus, temperatures, feed stream compositions, etc.). It is found that moving towards a methane richer fuel, the energy and exergy efficiency can remain almost constant at high levels (around 70%), while in absolute value the electric energy can increase up to 35% according to the system’s needs. Therefore, under this prospect, the present research study reveals the usefulness of low content methane fuels, which through the optimization process can succeed identical energy management compared to high content methane fuels.

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Interconnects for Solid Oxide Fuel Cells

Cited by 10 publications

References 114 publications

Direct Ink Writing for Electrochemical Device Fabrication: A Review of 3D-Printed Electrodes and Ink Rheology

Direct Ink Writing for Electrochemical Device Fabrication: A Review of 3D-Printed Electrodes and Ink Rheology

The electrolyte materials for SOFCs of low-intermediate temperature: Review

The Effect of Biogas Origin on the Electricity Production by Solid Oxide Fuel Cells

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