Porous La0.6Sr0.4CoO3−δ thin film cathodes for large area micro solid oxide fuel cell power generators

Garbayo, Íñigo; Esposito, Vincenzo; Sanna, Simone; Morata, Álex; Pla, Dolors; Fonseca, L.; Sabaté, N.; Tarancón, Albert

doi:10.1016/j.jpowsour.2013.10.038

Cited by 45 publications

(49 citation statements)

References 61 publications

(103 reference statements)

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“…This is often observed when the deposition is made on a substrate with different crystallinity or chemical bounding (17). This columnar growth of LSC prepared by PLD has previously been described (18)(19)(20).…”

Section: Room Temperature Characterizationmentioning

confidence: 92%

In Situ TEM Analysis of a Symmetric Solid Oxide Cell in Oxygen and Vacuum – Cation Diffusion Observations

Gualandris¹,

Simonsen

Wagner³

et al. 2017

ECS Trans.

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. In situ TEM analysis of a symmetric solid oxide cell in oxygen and vacuum-cation diffusion observations. ECS Transactions, 75(42), 123-133. https://doi.org/10.1149/07542.0123ecst In situ TEM analysis of a symmetric solid oxide cell in oxygen and vacuum -cation diffusion observations In order to establish the use of solid oxide fuel/electrolysis cells (SOFC/SOEC) in the energy market, a deeper understanding of degradation effects during operation is necessary. This study apply in situ transmission electron microscopy (TEM) of a symmetric model cell composed by two oxygen electrodes of La 0.6 Sr 0.4 CoO 3-δ (LSC) and an electrolyte, ZrO 2 : 8% mol Y 2 O 3 (8YSZ), deposited on 1% Nb doped SrTiO 3-δ (STN) single crystal substrate by pulsed laser deposition. The results showed a high cation mobility of the electrodes when exposed to 900 ºC. Cobalt is found to agglomerate at the interface between LSC and STN. Strontium depletion is observed in both electrodes. Finally, a faster grain growth occurs in LSC for the cell exposed to oxygen in comparison with the cell in vacuum.

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Section: Room Temperature Characterizationmentioning

confidence: 92%

In Situ TEM Analysis of a Symmetric Solid Oxide Cell in Oxygen and Vacuum – Cation Diffusion Observations

Gualandris¹,

Simonsen

Wagner³

et al. 2017

ECS Trans.

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“…Most interestingly, 2) NiO-YSZ tape cast anode supports by using inkjet printing of 2 2 strikingly thin 150 nm-thick YSZ layers were recently obtained by Gadea et al [21] by using reactive inkjet printing compatible with multiple cost-effective substrates such plastics or metals. This substrateflexibility together with the low temperature calcination treatments (400-500°C) required for densifying these ultrathin layers open the possibility of integrating them into innovative configurations such as micro-SOFCs [28][29] [30].…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional printed yttria-stabilized zirconia self-supported electrolytes for solid oxide fuel cell applications

Masciandaro

Torrell

Leone

et al. 2019

Journal of the European Ceramic Society

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“…In their work, they measured a complete μSOFC with LSCF as cathode and Pt as anode, founding a maximum power of 60mW/cm 2 at 500ºC. Garbayo and co-workers deposited porous thin films of La 0.6 Sr 0.4 CoO 3-δ (LSC) by PLD 50 . They tested the electrochemical properties in a symmetrical μSOFC, with YSZ as electrolyte, finding values of area specific resistances lower of 0.3 Ω/cm 2 at 700ºC.…”

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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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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Porous La0.6Sr0.4CoO3−δ thin film cathodes for large area micro solid oxide fuel cell power generators

Cited by 45 publications

References 61 publications

In Situ TEM Analysis of a Symmetric Solid Oxide Cell in Oxygen and Vacuum – Cation Diffusion Observations

In Situ TEM Analysis of a Symmetric Solid Oxide Cell in Oxygen and Vacuum – Cation Diffusion Observations

Three-dimensional printed yttria-stabilized zirconia self-supported electrolytes for solid oxide fuel cell applications

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

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