Anisotropic Oxygen Diffusion Properties in Pr2NiO4+δ and Nd2NiO4+δ Single Crystals
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | BASSAT, Jean-Marc. | |
hal.structure.identifier | Department of Materials | |
dc.contributor.author | BURRIEL, Monica | |
hal.structure.identifier | Institut des Sciences Chimiques de Rennes [ISCR] | |
dc.contributor.author | WAHYUDI, Olivia | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | CASTAINING, Remy | |
hal.structure.identifier | Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier [ICGM ICMMM] | |
dc.contributor.author | CERETTI, Monica | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | VEBER, Philippe | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | WEILL, Isabelle | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | VILLESUZANNE, Antoine | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | GRENIER, Jean-Claude | |
hal.structure.identifier | Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier [ICGM ICMMM] | |
dc.contributor.author | PAULUS, Werner | |
hal.structure.identifier | Department of Materials | |
dc.contributor.author | A. KILNER, John | |
dc.date.issued | 2013 | |
dc.identifier.issn | 1932-7447 | |
dc.description.abstractEn | The anisotropy of the oxygen anionic conductivity was measured for two mixed ionic electronic conducting (MIEC) oxides with the 2D K2NiF4-type structure, i.e., Nd2NiO4+δ and Pr2NiO4+δ, using high quality single crystals. Measurements of the oxygen diffusivity and surface exchange performed parallel and perpendicularly to the [001] direction, from 450 to 700 °C, using the isotope exchange depth profile (IEDP) technique, combining 16O/18O exchange and secondary ion mass spectroscopy (SIMS) are reported. For both materials the diffusion is about 3 orders of magnitude higher along the (a,b)-plane compared to the perpendicular (c-axis) direction. These values are among the highest when compared to several state-of-the-art MIEC materials. The diffusion along the (a,b)-plane for Pr2NiO4+δ is higher than that of Nd2NiO4+δ due to a much lower diffusion activation energy (0.5 and 1.4 eV for Pr2NiO4+δ and Nd2NiO4+δ, respectively). A large anisotropy is also observed in the surface exchange coefficient (k*) values for both materials, with (a,b)-plane coefficients being 1 to 1.5 orders of magnitude larger than those for the c-axis. | |
dc.language.iso | en | |
dc.publisher | American Chemical Society | |
dc.title.en | Anisotropic Oxygen Diffusion Properties in Pr2NiO4+δ and Nd2NiO4+δ Single Crystals | |
dc.type | Article de revue | |
dc.identifier.doi | 10.1021/jp409057k | |
dc.subject.hal | Chimie/Matériaux | |
dc.subject.hal | Chimie/Chimie théorique et/ou physique | |
bordeaux.journal | Journal of Physical Chemistry C | |
bordeaux.page | 1932-7447 | |
bordeaux.volume | 117 | |
bordeaux.issue | 50 | |
bordeaux.peerReviewed | oui | |
hal.identifier | hal-00920836 | |
hal.version | 1 | |
hal.popular | non | |
hal.audience | Internationale | |
hal.origin.link | https://hal.archives-ouvertes.fr//hal-00920836v1 | |
bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Physical%20Chemistry%20C&rft.date=2013&rft.volume=117&rft.issue=50&rft.spage=1932-7447&rft.epage=1932-7447&rft.eissn=1932-7447&rft.issn=1932-7447&rft.au=BASSAT,%20Jean-Marc.&BURRIEL,%20Monica&WAHYUDI,%20Olivia&CASTAINING,%20Remy&CERETTI,%20Monica&rft.genre=article |
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