Synthesis and Stability of a Nanoparticle-Infiltrated Solid Oxide Fuel Cell Electrode

Sholklapper, Tal Z.; Radmilović, Velimir; Jacobson, Craig P.; Visco, Steven J.; Jonghe, Lutgard C. De

doi:10.1149/1.2434203

Cited by 120 publications

(101 citation statements)

References 10 publications

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“…Cells were debinded in air at 525ºC for 1 h, and then sintered in 2% hydrgen in argon at 1350ºC for 2 hours in a tube furnace. After sintering, cells were infiltrated by techniques described previously [31,32] Complete cells were suspended above the burner by NiCr wires that also acted as electrical contacts. Each side of the cell was contacted with two NiCr wires, attached with a small piece of NiCr mesh spot-welded to the wire and the cell.…”

Section: Experimental Methodsmentioning

confidence: 99%

Metal-supported solid oxide fuel cells operated in direct-flame configuration

Tucker

Ying

2017

International Journal of Hydrogen Energy

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Metal-supported solid oxide fuel cells (MS-SOFC) with infiltrated catalysts on both anode and cathode side are operated in direct-flame configuration, with a propane flame impinging on the anode. Placing thermal insulation on the cathode dramatically increases cell temperature and performance. The optimum burner-to-cell gap height is a strong function of flame conditions. Cell performance at the optimum gap is determined within the region of stable non-coking conditions, with equivalence ratio from 1 to 1.9 and flow velocity from 100 to 300 cm s . The cell starts to produce power within 10 s of being placed in the flame, and displays stable performance over 10 extremely rapid thermal cycles. The cell provides stable performance for >20 h of semi-continuous operation.

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Section: Experimental Methodsmentioning

confidence: 99%

Metal-supported solid oxide fuel cells operated in direct-flame configuration

Tucker

Ying

2017

International Journal of Hydrogen Energy

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“…However, it is difficult to obtain concentrated solutions of particles small enough to fit into the pore structure of the scaffold. Based on the information given by the authors for the preparation of their nanoparticles, [83] we estimate that the nanoparticle solutions used in that work were 15 wt.% ($3 vol.%) LSM, implying that the amount of LSM added in each step is similar to that which would be added using 1 M solutions of the salts. The initial performance of electrodes prepared using a single infiltration of nanoparticles was significantly better than that which could be achieved using a single infiltration step with the salt solutions.…”

Section: Electrode Fabrication By Infiltrationmentioning

confidence: 99%

High‐Performance SOFC Cathodes Prepared by Infiltration

2009

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Improved cathodes are required for low‐temperature operation of solid‐oxide fuel cells (SOFCs). Recent work has shown that electrode fabrication and modification by infiltration of active components into a porous scaffold can result in outstanding electrochemical performance. In this paper we review the literature on this new approach for cathode preparation and discuss the insights that this work has provided for understanding the relationships between the materials properties, electrochemical performance, and electrode stability.

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“…15,16 Even though less of the perovskite is required to achieve the percolation threshold in composites formed by infiltration, 14 apparently, loadings should at least approach the percolation threshold for normal composite electrodes, ϳ30 vol %.…”

mentioning

confidence: 99%

Fabrication of LSM–YSZ Composite Electrodes by Electrodeposition

Bidrawn¹,

Vohs²,

Gorte³

2010

J. Electrochem. Soc.

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Composites of Sr-doped LaMnO 3 ͑LSM͒ and yttria-stabilized zirconia ͑YSZ͒ were prepared by sequential electrodeposition of La and Mn species from nitrate salts in Dimethyl Sulfoxide ͑DMSO͒ into a porous, carbon-coated YSZ substrate, followed by the infiltration of Sr͑NO 3 ͒ 2 . The La and Mn species were uniformly deposited throughout the depth of a 50 m porous layer to the interface with a dense YSZ electrolyte. The LSM perovskite phase was formed after heating to 1373 K. Solid oxide fuel cell cathodes prepared by single-step electrodeposition showed similar performance to LSM-YSZ electrodes prepared by wet impregnation using many steps.

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Synthesis and Stability of a Nanoparticle-Infiltrated Solid Oxide Fuel Cell Electrode

Cited by 120 publications

References 10 publications

Metal-supported solid oxide fuel cells operated in direct-flame configuration

Metal-supported solid oxide fuel cells operated in direct-flame configuration

High‐Performance SOFC Cathodes Prepared by Infiltration

Fabrication of LSM–YSZ Composite Electrodes by Electrodeposition

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