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.
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References
A. Dyer, A. Chimedtsogzol, L. Campbell and C. Williams, Micropor. Mesopor. Mat., 95, 172–175 (2006)
S.D. Sharma, K.G. Varshney and S.C. Mojumdar, J Therm Anal Calorim, 108, 843–850 (2012)
S. Ferdov, U. Kolitsch, O. Petrov, V. Kostov-Kytin, C. Lengauer and E. Tillmanns, Micropor. Mesopor. Mat., 81, 79–86 (2005)
F. Pan, X. Lu, Y. Wang, S. Chen, T. Wang and Y. Yan, Micropor. Mesopor. Mat., 184, 134–140 (2014)
Y. Zou, R. Wang, Z. Zhang, G. Li and S. Qiu, Micropor. Mesopor. Mat., 182, 178–184 (2013)
D.M. Poojary, A.I. Bortun, L.N. Burton and A. Clearfield, Inorg. Chem, 36, 3072–3079 (1997)
J. Plevert, R. Sanchez-Smith, T.M. Gentz, H. Li, T.L. Groy, O.M. Yaghi and M. O’Keeffe, Inorg. Chem, 42, 5954–5959 (2003)
R. George, J.A. Hriljac, MRS Adv., 2, 729–734 (2017)
A.C. Larson and R.B. Von Dreele, “General Structure Analysis System (GSAS)”, Los Alamos National Laboratory Report LAUR, 86–748 (2000)
B.H. Toby, J. Appl. Cryst., 34, 210–213 (2001).
C.S. Fewox, A. Clearfield and A.J. Celestian, Inorg. Chem., 50, 3596–3604 (2011)
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George, R., Hriljac, J.A. Synthesis and ion exchange properties of zirconogermanates. MRS Advances 4, 965–970 (2019). https://doi.org/10.1557/adv.2018.639
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DOI: https://doi.org/10.1557/adv.2018.639