Anisotropic oxygen diffusion properties in Pr2NiO 4+δ and Nd2NiO4+δ single crystals

Jean Marc Bassat, Mónica Burriel, Olivia Wahyudi, Rémi Castaing, Monica Ceretti, Philippe Veber, Isabelle Weill, Antoine Villesuzanne, Jean Claude Grenier, Werner Paulus, John A. Kilner

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

The anisotropy of the oxygen anionic conductivity was measured for two mixed ionic electronic conducting (MIEC) oxides with the 2D K 2NiF4-type structure, i.e., Nd2NiO 4+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 Pr 2NiO4+δ is higher than that of Nd 2NiO4+δ due to a much lower diffusion activation energy (0.5 and 1.4 eV for Pr2NiO4+δ and Nd 2NiO4+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.

Original languageEnglish
Pages (from-to)26466-26472
Number of pages7
JournalJournal of Physical Chemistry C
Volume117
Issue number50
Early online date27 Nov 2013
DOIs
Publication statusPublished - 19 Dec 2013

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Surfaces, Coatings and Films
  • Physical and Theoretical Chemistry

Cite this

Bassat, J. M., Burriel, M., Wahyudi, O., Castaing, R., Ceretti, M., Veber, P., ... Kilner, J. A. (2013). Anisotropic oxygen diffusion properties in Pr2NiO 4+δ and Nd2NiO4+δ single crystals. Journal of Physical Chemistry C, 117(50), 26466-26472. https://doi.org/10.1021/jp409057k

Anisotropic oxygen diffusion properties in Pr2NiO 4+δ and Nd2NiO4+δ single crystals. / Bassat, Jean Marc; Burriel, Mónica; Wahyudi, Olivia; Castaing, Rémi; Ceretti, Monica; Veber, Philippe; Weill, Isabelle; Villesuzanne, Antoine; Grenier, Jean Claude; Paulus, Werner; Kilner, John A.

In: Journal of Physical Chemistry C, Vol. 117, No. 50, 19.12.2013, p. 26466-26472.

Research output: Contribution to journalArticle

Bassat, JM, Burriel, M, Wahyudi, O, Castaing, R, Ceretti, M, Veber, P, Weill, I, Villesuzanne, A, Grenier, JC, Paulus, W & Kilner, JA 2013, 'Anisotropic oxygen diffusion properties in Pr2NiO 4+δ and Nd2NiO4+δ single crystals', Journal of Physical Chemistry C, vol. 117, no. 50, pp. 26466-26472. https://doi.org/10.1021/jp409057k
Bassat, Jean Marc ; Burriel, Mónica ; Wahyudi, Olivia ; Castaing, Rémi ; Ceretti, Monica ; Veber, Philippe ; Weill, Isabelle ; Villesuzanne, Antoine ; Grenier, Jean Claude ; Paulus, Werner ; Kilner, John A. / Anisotropic oxygen diffusion properties in Pr2NiO 4+δ and Nd2NiO4+δ single crystals. In: Journal of Physical Chemistry C. 2013 ; Vol. 117, No. 50. pp. 26466-26472.
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AU - Veber, Philippe

AU - Weill, Isabelle

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