Local structure of rare earth niobates (RE3NbO7, RE = Y, Er, Yb, Lu) for proton conduction applications

L. Lõpez-Conesa; J. M. Rebled; M. H. Chambrier; K. Boulahya; J. M. González-Calbet; M. D. Braida; G. Dezanneau; S. Estradé; F. Peirõ

doi:10.1002/fuce.201200136

Local structure of rare earth niobates (RE₃NbO₇, RE = Y, Er, Yb, Lu) for proton conduction applications

L. Lõpez-Conesa, J. M. Rebled, M. H. Chambrier, K. Boulahya, J. M. González-Calbet, M. D. Braida, G. Dezanneau, S. Estradé, F. Peirõ

Research output: Contribution to journal › Article › peer-review

Abstract

Structural properties of rare earth niobates (RE₃NbO ₇, RE = Y, Er, Yb, Lu) have been studied using selected area electron diffraction (SAED) and high resolution transmission electron microscopy (HRTEM). SAED patterns show diffuse scattering features along the [111] direction of the pure fluorite (Fm-3m) structure due to a short-range ordering of anion vacancies in the fluorite structure or the change of coordination number around some cations. The latter is related to the presence of small domains of pyrochlore phase (Fd-3m), which are observed in the HRTEM images.

Original language	English
Pages (from-to)	29-33
Number of pages	5
Journal	Fuel Cells
Volume	13
Issue number	1
DOIs	https://doi.org/10.1002/fuce.201200136
Publication status	Published - 1 Feb 2013
Externally published	Yes

Keywords

Electrochemical Power Sources
Fuel Cell Electrode
Low Temperature SOFCs
SOFC
Solid Oxide Fuel Cell

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This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1002/fuce.201200136

Cite this

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title = "Local structure of rare earth niobates (RE3NbO7, RE = Y, Er, Yb, Lu) for proton conduction applications",

abstract = "Structural properties of rare earth niobates (RE3NbO 7, RE = Y, Er, Yb, Lu) have been studied using selected area electron diffraction (SAED) and high resolution transmission electron microscopy (HRTEM). SAED patterns show diffuse scattering features along the [111] direction of the pure fluorite (Fm-3m) structure due to a short-range ordering of anion vacancies in the fluorite structure or the change of coordination number around some cations. The latter is related to the presence of small domains of pyrochlore phase (Fd-3m), which are observed in the HRTEM images.",

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T1 - Local structure of rare earth niobates (RE3NbO7, RE = Y, Er, Yb, Lu) for proton conduction applications

AU - Lõpez-Conesa, L.

AU - Rebled, J. M.

AU - Chambrier, M. H.

AU - Boulahya, K.

AU - González-Calbet, J. M.

AU - Braida, M. D.

AU - Dezanneau, G.

AU - Estradé, S.

AU - Peirõ, F.

PY - 2013/2/1

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AB - Structural properties of rare earth niobates (RE3NbO 7, RE = Y, Er, Yb, Lu) have been studied using selected area electron diffraction (SAED) and high resolution transmission electron microscopy (HRTEM). SAED patterns show diffuse scattering features along the [111] direction of the pure fluorite (Fm-3m) structure due to a short-range ordering of anion vacancies in the fluorite structure or the change of coordination number around some cations. The latter is related to the presence of small domains of pyrochlore phase (Fd-3m), which are observed in the HRTEM images.

KW - Electrochemical Power Sources

KW - Fuel Cell Electrode

KW - Low Temperature SOFCs

KW - SOFC

KW - Solid Oxide Fuel Cell

U2 - 10.1002/fuce.201200136

DO - 10.1002/fuce.201200136

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