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Lookup NU author(s): Dr Stevin PramanaORCiD
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Apatite framework taxonomy succinctly rationalises the crystallographic modifications of this structural family as a function of chemical composition. Taking the neutral apatite [La8Sr2][(GeO4)6]O 2 as a prototype electrolyte, this classification scheme correctly predicted that 'excess' oxygen in La9SrGe6O26.5 is tenanted in the framework as [La9Sr][(GeO4)5.5(GeO5) 0.5]O2, rather than the presumptive tunnel location of [La9Sr][(GeO4)6]O2.5. The implication of this approach is that in addition to the three known apatite genera-A10(BO3)6X2, A10(BO4)6X2, A10(BO5)6X2-hybrid electrolytes of the types A10(BO3/BO4/BO5)6 X2 can be designed, with potentially superior low-temperature ion conduction, mediated by the introduction of oxygen to the framework reservoir. © 2008 Elsevier Inc. All rights reserved.
Author(s): Pramana SS, Klooster WT, White TJ
Publication type: Article
Publication status: Published
Journal: Journal of Solid State Chemistry
Year: 2008
Volume: 181
Issue: 8
Pages: 1717-1722
Print publication date: 01/08/2008
Online publication date: 01/04/2008
ISSN (print): 0022-4596
ISSN (electronic): 1095-726X
Publisher: Academic Press
URL: https://doi.org/10.1016/j.jssc.2008.03.028
DOI: 10.1016/j.jssc.2008.03.028
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