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Article Dans Une Revue ECS Transactions Année : 2019

Shaping of ceria-based SOC cells: development of a combined tape-casting and infiltration route

Résumé

The present study is focused on the development of simple and low cost preparation of GDC10 (Ce0,9Gd0,1O1,95) as electrolyte for Solid Oxide Cells operating at 600°C. The main goal is to shape a single cell with porous/dense/porous GDC10 layers, the porous layers being thereafter infiltrated by catalysts. Two shaping methods are used. In the first one the electrolyte powder is pressed, followed by the infiltration of a screen-printed porous backbone. Pr6O11 and Ni were infiltrated as catalysts on the oxygen and hydrogen side, respectively. In both cases, the polarization values measured at 600°C on symmetrical cells are very low. To further facilitate the preparation of the cell, a porous/dense/porous support is elaborated in one step using tape-casting, then infiltrated with catalysts. The goal being to obtain a dense GDC10 electrolyte with two porous GDC10 backbones at the same temperature. Electrochemical measurements either on symmetrical or single cells are described.

Domaines

Matériaux
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Dates et versions

hal-02337148 , version 1 (30-07-2020)

Identifiants

Citer

Laura Guesnet, Pierre-Marie Geffroy, Aurelien Flura, Clément Nicollet, Jean-Claude Grenier, et al.. Shaping of ceria-based SOC cells: development of a combined tape-casting and infiltration route. ECS Transactions, 2019, 91 (1), pp.291-299. ⟨10.1149/09101.0291ecst⟩. ⟨hal-02337148⟩
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