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Synthesis and ion exchange properties of zirconogermanates

Published online by Cambridge University Press:  27 December 2018

Ryan George  and
Joseph A. Hriljac
Ryan George*
Affiliation:
School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, U.K.
Joseph A. Hriljac
Affiliation:
School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, U.K.
*
*(Email: [email protected])
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Abstract

Pure and Nb-doped zirconium germanate materials of composition K2-xZr1-xNbxGe3O9.H2O where x = 0, 0.1, 0.2 and 0.25 with the structure of the mineral umbite have been successfully synthesised. The parent material displays negligible ion exchange of K+ for Cs+ but the doped materials shows much improved exchange. Synchrotron X-ray diffraction shows substantial peak splitting which varies with increasing niobium content. Preliminary Rietveld refinements suggest a two phase model with a caesium and potassium rich doped umbite phase.

Keywords

CsGenuclear materials
Type
Articles
Information
MRS Advances , Volume 4 , Issue 17-18: Energy-Transfer, Storage and Conversion , 2019 , pp. 965 - 970
Copyright
Copyright © Materials Research Society 2018 

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