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Investigation into the effect on structure of oxoanion doping in Na2M(SO4)2·2H2O
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Driscoll, L. L., Kendrick, Emma, Wright, A. J. and Slater, P. R. (2016) Investigation into the effect on structure of oxoanion doping in Na2M(SO4)2·2H2O. Journal of Solid State Chemistry, 242 . pp. 103-111. doi:10.1016/j.jssc.2016.07.004 ISSN 0022-4596.
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Official URL: http://dx.doi.org/10.1016/j.jssc.2016.07.004
Abstract
In this paper an investigation into the effect of transition metal ion and selenate/fluorophosphate doping on the structures of Na2M(SO4)2·2H2O (M=transition metal) materials is reported. In agreement with previous reports, the monoclinic (Kröhnkite) structure is adopted for M=Mn, Fe, Co, Cu, while for the smallest first row divalent transition metal ion, M=Ni, the triclinic (Fairfieldite structure) is adopted. On selenate doping there is a changeover in structure from monoclinic to triclinic for M=Fe, Co, Cu, with the larger Fe2+ system requiring the highest level of selenate to complete the changeover. Thus the results suggest that the relative stability of the two structure types is influenced by the relative size of the transition metal: oxoanion group, with the triclinic structure favoured for small transition metals/large oxoanions.
Item Type: | Journal Article | ||||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||||
Journal or Publication Title: | Journal of Solid State Chemistry | ||||||||
Publisher: | Academic Press | ||||||||
ISSN: | 0022-4596 | ||||||||
Official Date: | October 2016 | ||||||||
Dates: |
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Volume: | 242 | ||||||||
Page Range: | pp. 103-111 | ||||||||
DOI: | 10.1016/j.jssc.2016.07.004 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access |
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