Modulated structure determination and ion transport mechanism of oxide-ion conductor CeNbO.sub.4+δ./sub.

0533333 - FZÚ 2021 RIV GB eng J - Journal Article
Li, J. - Pan, F. - Lin, C. - Palatinus, Lukáš - Allix, M. - Kuang, X. - Lin, J. - Sun, J.
Modulated structure determination and ion transport mechanism of oxide-ion conductor CeNbO_4+δ.
Nature Communications. Roč. 11, č. 1 (2020), s. 1-9, č. článku 4751. E-ISSN 2041-1723
Institutional support: RVO:68378271
Keywords : CeNbO_4+δ * oxygen hyperstoichiometry materials * modulated structure * electron diffraction
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 14.919, year: 2020
Method of publishing: Open access

CeNbO4+δ, a family of oxygen hyperstoichiometry materials with varying oxygen content that shows mixed electronic and oxide ionic conduction, has been known for four decades. However, the oxide ionic transport mechanism has remained unclear due to the unknown atomic structures of CeNbO4.08 and CeNbO4.33. Here, we report the complex (3 + 1)D incommensurately modulated structure of CeNbO4.08, and the supercell structure of CeNbO4.33 from single nanocrystals by using a three-dimensional electron diffraction technique.

Permanent Link: http://hdl.handle.net/11104/0311745