Partial cation-order and early-stage, phase separation in phase w, Li xCo1-xO: 0.075â?¤xâ?¤0.24-0.31

Wu, Y., Pasero, D., McCabe, E.E., Matsushima, Y., West, A.R. (2009) Partial cation-order and early-stage, phase separation in phase w, Li xCo1-xO: 0.075â?¤xâ?¤0.24-0.31. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 465 (2106). pp. 1829-1841. ISSN 13645021 (ISSN). (doi:10.1098/rspa.2008.0489) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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Abstract

We report the characterization using X-ray and neutron powder diffraction, transmission electron microscopy and extended X-ray absorption fine structure of a new, partially ordered rock-salt-like solid solution phase Li xCo1-xO: 0.075�x�0.24-0.31. The cation stacking sequence along [111] consists of alternating planes of Co and Co/Li. Nano-sized domains of this cation-ordered phase appear alongside disordered regions; domain size increases from 2 to 8 nm with increasing Li content. Compositions of ordered and disordered regions are Li- and Co-rich, respectively, and, therefore, the phase exhibits frozen-in, incipient phase separation. This microstructure could be considered as a precursor to precipitation of fully ordered, rhombohedral LiCoO2. © 2009 The Royal Society.

Item Type: Article
DOI/Identification number: 10.1098/rspa.2008.0489
Additional information: Unmapped bibliographic data: LA - English [Field not mapped to EPrints] J2 - Proc. R. Soc. A Math. Phys. Eng. Sci. [Field not mapped to EPrints] AD - Department of Engineering Materials, University of Sheffield, Mappin Street, Sheffield S1 3JD, United Kingdom [Field not mapped to EPrints] AD - Division of Advanced Materials Science and Technology, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei-shi, Tokyo 184-8588, Japan [Field not mapped to EPrints] DB - Scopus [Field not mapped to EPrints]
Uncontrolled keywords: Convergent-beam electron diffraction, Electron diffraction, Structural characterization, Convergent-beam electron diffraction, Disordered regions, Domain size, Extended X-ray absorption fine structures, In-phase, Li content, Nano-sized, Ordered phase, Partial cations, Rock salt, Solid solution phase, Stacking sequence, Structural characterization, Electron diffraction, Electrons, Phase modulation, Positive ions, Transmission electron microscopy, Phase separation
Subjects: Q Science > QD Chemistry > QD478 Solid State Chemistry
Divisions: Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: Emma McCabe
Date Deposited: 10 Apr 2015 10:00 UTC
Last Modified: 29 May 2019 14:25 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/47932 (The current URI for this page, for reference purposes)
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