Unveiling structural disorders in honeycomb layered oxide: Na2Ni2TeO6
Artikel i vetenskaplig tidskrift, 2021

Honeycomb layered oxides have garnered tremendous research interest in a wide swath of disciplines owing not only to the myriad physicochemical properties they exhibit, but also their rich crystal structural versatility. Herein, a comprehensive crystallographic study of a sodium-based Na2Ni2TeO6 honeycomb layered oxide has been performed using atomic-resolution transmission electron microscopy, elucidating a plethora of atomic arrangement (stacking) disorders in the pristine material. Stacking disorders in the arrangement of honeycomb metal slab layers (stacking faults) occur predominantly perpendicular to the slabs with long-range coherence length and enlisting edge dislocations in some domains. Moreover, the periodic arrangement of the distribution of alkali atoms is altered by the occurrence of stacking faults. The multitude of disorders innate in Na2Ni2TeO6 envisage broad implications in the functionalities of related honeycomb layered oxide materials and hold promise in bolstering renewed interest in their material science.

Correction published, see: https://doi.org/10.1016/j.mtla.2021.101104

Atomic structure

Electron diffraction pattern

Transmission electron microscopy (TEM)


Scanning transmission electron microscopy (STEM)


Titus Masese

Kyoto University

National Institute of Advanced Industrial Science and Technology (AIST)

Yoshinobu Miyazaki

Sumika Chemical Analysis Service (SCAS)

Josef Rizell

Chalmers, Fysik, Materialfysik

National Institute of Advanced Industrial Science and Technology (AIST)

Godwill Mbiti Kanyolo

University of Electro-Communications

Teruo Takahashi

Sumika Chemical Analysis Service (SCAS)

Miyu Ito

Sumika Chemical Analysis Service (SCAS)

Hiroshi Senoh

National Institute of Advanced Industrial Science and Technology (AIST)

Tomohiro Saito

Sumika Chemical Analysis Service (SCAS)


25891529 (eISSN)

Vol. 15 101003


Oorganisk kemi


Den kondenserade materiens fysik



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