VIBHU, Vaibhav; ROUGIER, Aline; NICOLLET, Clément; FLURA, Aurélien; FOURCADE, Sébastien; PENIN, Nicolas; GRENIER, Jean-Claude; BASSAT, Jean-Marc.

doi:10.1016/j.jpowsour.2016.03.012

Métadonnées

Afficher la notice complète

Licence d’utilisation du document

VIBHU, Vaibhav
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

ROUGIER, Aline
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

NICOLLET, Clément
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

Langue

Article de revue

Ce document a été publié dans

Journal of Power Sources. 2016, vol. 317, p. 184-193

Elsevier

Résumé en anglais

The present work is focused on the study of Pr4Ni3O10+δ as a new cathode material for Solid Oxide Fuel Cells (SOFCs). The structural study leads to an indexation in orthorhombic structure with Fmmm space group, this structure being thermally stable throughout the temperature range up to 1000 °C under air and oxygen. The variation of oxygen content (10+δ) as a function of temperature under different atmospheres show that Pr4Ni3O10+δ is always oxygen over-stoichiometric, which further suggests its MIEC properties. The polarization resistance (Rp) of Pr4Ni3O10+δ electrode is measured for GDC/co-sintered and two-step sintered half cells. The Rp for co-sintered sample is found to be 0.16 Ω cm2 at 600 °C under air, which is as low as the one of highest performing Pr2NiO4+δ nickelate (Rp = 0.15 Ω cm2 at 600 °C). Moreover, an anode supported (Ni-YSZ//YSZ) single cell including GDC//Pr4Ni3O10+δ co-sintered electrode shows a maximum power density of 1.60 W cm−2 at 800 °C and 0.68 W cm−2 at 700 °C. Here, the work is emphasized on the very close electrochemical performance of Pr4Ni3O10+δ compared to the one of Pr2NiO4+δ with higher chemical stability, which gives great interests to consider this material as a very interesting oxygen-electrode for SOFCs.< Réduire

Mots clés en anglais

SOFC

Nickelates

Chemical stability

Oxygen over-stoichiometry

OER

DOI

http://dx.doi.org/10.1016/j.jpowsour.2016.03.012

Project ANR

Performance Et Robustesse pour les cellules d'Electrolyse haute température de Nouvelle génération

Origine

Importé de hal

Unités de recherche

Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB) - UMR 5026