Solid-oxide fuel cells

Esposito, Vincenzo; Garbayo, Íñigo; Linderoth, Søren; Pryds, Nini

doi:10.1016/b978-1-78242-245-7.00015-4

Cited by 9 publications

(16 citation statements)

References 126 publications

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“…There are some requirements common to both the oxygen electrode (cathode) and the fuel electrode (anode), which have to be fulfilled in order to assure fast electrochemical reactions of the reactants 37 . Firstly, a high electronic conductivity is requested to permit a facile current collection.…”

Section: The Electrodesmentioning

confidence: 99%

“…The electrodes in a μSOFC are of primarily importance for achieving high performance of the device, especially at low and intermediate temperature. There are some requirements common to both the oxygen electrode (cathode) and the fuel electrode (anode), which have to be fulfilled in order to assure fast electrochemical reactions of the reactants 37 . Firstly, a high electronic conductivity is requested to permit a facile current collection.…”

Section: The Electrodesmentioning

confidence: 99%

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Micro solid oxide fuel cells: a new generation of micro-power sources for portable applications

et al. 2017

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Portable electronic devices are already an indispensable part of our daily life; and their increasing number and demand for higher performance is becoming a challenge for the research community. In particular, a major concern is the way to efficiently power these energy-demanding devices, assuring long grid independency with high efficiency, sustainability and cheap production. In this context, technologies beyond Li-ion are receiving increasing attention, among which the development of micro solid oxide fuel cells (μSOFC) stands out. In particular, μSOFC provides a high energy density, high efficiency and opens the possibility to the use of different fuels, such as hydrocarbons. Yet, its high operating temperature has typically hindered its application as miniaturized portable device. Recent advances have however set a completely new range of lower operating temperatures, i.e. 350-450ºC, as compared to the typical >900ºC needed for classical bulk SOFC systems. In this work, a comprehensive review of the status of the technology is presented. The main achievements, as well as the most important challenges still pending are discussed, regarding (i.) the cell design and microfabrication, and (ii.) the integration of functional electrolyte and electrode materials. To conclude, the different strategies foreseen for a wide deployment of the technology as new portable power source are underlined.

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Section: The Electrodesmentioning

confidence: 99%

Section: The Electrodesmentioning

confidence: 99%

Micro solid oxide fuel cells: a new generation of micro-power sources for portable applications

et al. 2017

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“…The electrolyte should be sufficiently dense to pass the ions between the electrodes (anode and cathode), 1 chemically stable under oxidizing and reducing atmospheres, 2 and have sufficiently low internal ohmic resistance, which can be achieved by decreasing the thickness of the electrolyte. 3 The reduction of O 2 to O 2− takes place at the cathode. The cathode must be porous, possess mixed ionic and electronic conducting properties, stable in air environment, possess large triple phase boundary (TPB), and chemically compatible with neighboring cell components.…”

Section: Introductionmentioning

confidence: 99%

A review on the preparation of anode materials and anode films for solid oxide fuel cell applications

Hadi

Somalu

Osman

et al. 2021

Intl J of Energy Research

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The primary components of SOFCs are the anode, cathode, and the electrolyte. Anode is critical in achieving the effective electrochemical oxidation of fuel; thus, its performance can be improved using homogenous powder synthesized through an appropriate method. Various synthesis methods, including solidstate reaction and wet chemical methods have been used to synthesize anode materials. However, each technique has several advantages and disadvantages.Given that anode is a porous electrode, few criteria, such as high conductivity, tolerance towards carbon deposition, chemical stability, and thermal stability, must be fulfilled. Researchers also modified the existing synthesis method to improve the performance of the anode. In addition, various anode fabrication techniques including physical and colloidal deposition techniques are briefly discussed to understand their effect on the performance of the deposited layers.The aim of this review is to discuss the various anode synthesis and deposition techniques and their influence on the properties and performance of SOFCs.

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“…Several processes have been considered for the fabrication of thin-film electrolytes for SOFC. While the deposition of films < 10 µm using spray coating 8 , tape casting 9 , electrophoretic deposition (EPD) 10 and screen printing 11 is technically challenging, more advanced techniques, such as pulsed laser deposition (PLD) 12 , chemical vapor deposition (CVD) 13 or spray pyrolysis 14 can produce thin films with fine microstructure and compositions. However, the more advanced techniques are generally difficult to scale up and are not cost effective.…”

Section: Introductionmentioning

confidence: 99%

“…100-500 nm YSZ powders 21 ). This step imposes limitations on the substrates selection to be used, excluding silicon, metals, and nanostructured substrates, that are usually selected for thin-film based SOFCs made by PVD and CVD techniques 14 . Alternatively to colloidal suspensions, particle-free, chemically reactive solutions contain only dissolved precursor salts or molecules.…”

Section: Introductionmentioning

confidence: 99%

Aqueous metal–organic solutions for YSZ thin film inkjet deposition

et al. 2017

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Inkjet printing of 8% Y2O3-stabilized ZrO2 (YSZ) thin films is achieved by designing a novel waterbased reactive ink for Drop-on-Demand (DoD) inkjet printing. The ink formulation is based on a novel chemical strategy that consists of a combination of metal oxide precursors (zirconium alkoxide and yttrium salt), water and a nucleophilic agent, i.e. n-methyldiethanolamine (MDEA). This chemistry leads to metal-organic complexes with long term ink stability and high precision printability. Ink rheology and chemical reactivity are analyzed and controlled in terms of metal-organic interactions in the solutions. Thin dense nanocrystalline YSZ film below 150 nm are obtained by low temperature calcination treatments (400-500 °C), making the deposition suitable for a large variety of substrates, including silicon, glass and metals. Thin films and printed patterns achieve full densification with no lateral shrinkage and high ionic conductivity.

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Solid-oxide fuel cells

Cited by 9 publications

References 126 publications

Micro solid oxide fuel cells: a new generation of micro-power sources for portable applications

Micro solid oxide fuel cells: a new generation of micro-power sources for portable applications

A review on the preparation of anode materials and anode films for solid oxide fuel cell applications

Aqueous metal–organic solutions for YSZ thin film inkjet deposition

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