Design of La2-xPrxNiO4+d SOFC cathodes : a compromise between electrochemical performance and thermodynamic stability
| hal.structure.identifier | Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces [LEPMI ] | |
| dc.contributor.author | SHARMA, Rakesh K. | |
| hal.structure.identifier | Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces [LEPMI ] | |
| dc.contributor.author | CHEAH, Seng-Kian | |
| hal.structure.identifier | Laboratoire des matériaux et du génie physique [LMGP ] | |
| dc.contributor.author | BURRIEL, Mónica | |
| hal.structure.identifier | Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces [LEPMI ] | |
| dc.contributor.author | DESSEMOND, Laurent | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | BASSAT, Jean-Marc. | |
| hal.structure.identifier | Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces [LEPMI ] | |
| dc.contributor.author | DJURADO, Elisabeth | |
| dc.date.issued | 2017 | |
| dc.identifier.issn | 2050-7488 | |
| dc.description.abstractEn | Architecturally designed La2−xPrxNiO4+δ (with x = 0, 0.5, 1 and 2) cathodes on the Ce0.9Gd0.1O2−δ (CGO) electrolyte have been prepared with a view to take advantage of the complimentary properties of the two extreme compositions La2NiO4+δ and Pr2NiO4+δ, i.e. the superior stability of La2NiO4+δ and the higher electronic conductivity of Pr2NiO4+δ. The design consists of stacking of two layers starting with a 3D tree-like microstructure (∼20 μm thick) over a thin dense base layer (∼100 nm) fabricated in one step by electrostatic spray deposition (ESD) and then topped by using a screen-printed (SP) current collecting layer of the same composition. X-ray diffraction confirms the formation of a complete solid solution crystallizing in a single phase orthorhombic structure with the Fmmm space group. The thermodynamic stability and polarisation resistance (Rpol) decrease by increasing the Pr content. Among the complete La2−xPrxNiO4+δ solid solutions, LaPrNiO4+δ shows the best compromise between electrochemical properties (the lowest Rpol value available in the literature for this composition, 0.12 Ω cm2 at 600 °C) and thermodynamic stability in air. Moreover, an anode supported single cell (Ni-3YSZ/Ni-8YSZ/8YSZ/CGO) including the LaPrNiO4+δ double layer electrode shows a maximum power density of 438 mW cm−2 at 700 °C. | |
| dc.description.sponsorship | Center of Excellence in Multifunctional Architectured Materials - ANR-10-LABX-0044 | |
| dc.language.iso | en | |
| dc.publisher | Royal Society of Chemistry | |
| dc.title.en | Design of La2-xPrxNiO4+d SOFC cathodes : a compromise between electrochemical performance and thermodynamic stability | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1039/c6ta08011a | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Journal of Materials Chemistry A | |
| bordeaux.page | 1120–1132 | |
| bordeaux.volume | 5 | |
| bordeaux.issue | 3 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-01611329 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-01611329v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Materials%20Chemistry%20A&rft.date=2017&rft.volume=5&rft.issue=3&rft.spage=1120%E2%80%931132&rft.epage=1120%E2%80%931132&rft.eissn=2050-7488&rft.issn=2050-7488&rft.au=SHARMA,%20Rakesh%20K.&CHEAH,%20Seng-Kian&BURRIEL,%20M%C3%B3nica&DESSEMOND,%20Laurent&BASSAT,%20Jean-Marc.&rft.genre=article |
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