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Poster De Conférence Année : 2019

Continuous hydrothermal synthesis of doped barium zirconate powder for PCFC (Protonic Ceramic Fuel Cell) application

Résumé

BaZr 1-x M x O 3-d (M=Ce and/or Y) perovskite materials are good potential candidates for Protonic Ceramic Fuel Cell (PCFC) electrolyte due to their remarkable property of protonic conduction at intermediate temperature (400-600°C). Fabbri et al. have reported a protonic conductivity of 2.10-2 S.cm-1 at 600°C for BaCe 0.7 Zr 0.1 Y 0.2 O 3-d [1]. However, the synthesis of these materials requires high temperature (1500°C) by solid state reaction. The hydrothermal synthesis in supercritical water appears then as a way to synthetize perovskite materials at a temperature as low as 400°C. Furthermore, this process allows the formation of nanometric powder. Finally the continuous hydrothermal process offers many advantages such as: "soft-chemistry" route, low cost and sustainable elaboration.

Domaines

Matériaux
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Dates et versions

hal-03169162 , version 1 (15-03-2021)

Identifiants

  • HAL Id : hal-03169162 , version 1

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Mélanie François, François Maeght, Frédéric Demoisson, Gilles Caboche. Continuous hydrothermal synthesis of doped barium zirconate powder for PCFC (Protonic Ceramic Fuel Cell) application. C'NANO (Le congrès commun SFNano C’Nano 2019), Dec 2019, DIJON, France. ⟨hal-03169162⟩
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