New compounds Li3Ba2Bi3(XO4)8 (X = Mo, W): synthesis and properties
Abstract
New compounds Li3Ba2Bi3(XO4)8(Х = Mo, W) were obtained by the ceramic technology. Those are the first representatives of the ternary molybdates and tungstates Li3Ba2Bi3(XO4)8 family, which contain different from the rare earth elements trivalent metal. The sequence of chemical transformations occurring during the Li3Ba2Bi3(WO4)8 formation has been established. The primary characterization of the obtained phases was carried out and their ion-conducting properties were studied. The synthesized compounds are shown to melt incongruently, isostructural to the lanthanide-containing analogues (structural type of BaNd2(MoO4)4, sp. gr. C2/c) and crystallize in the monoclinic crystal system with unit cell parameters а = 5.2798(1), b = 12.8976(4), c = 19.2272(5) Å, β = 90.978(2)° (Х = Mo), а = 5.2733(2), b = 12.9032(4), c = 19.2650(6) Å, β = 91.512(3)° (Х = W). Li3Ba2Bi3(XO4)8 are found to undergo the diffuse first-order phase transitions at 441°C (molybdate)
and 527°C (tungstate), after that their conductivity reaches values of 10–3–10–4 S/cm.
Downloads
References
Kozhevnikova N. M., Mokhosoev M. V. Troinye molibdaty [Ternary molybdates]. Ulan-Ude: Buryat State University Publ.; 2000. 298 с. (In Russ.)
Kozhevnikova N. M., Korsun V. P., Mokhosoev M. V., Alekseev F. P. Troinye molibdaty litiya, bariya i redkozemel’nykh elementov [Ternary molybdates of lithium, barium and rare earth elements]. Russian Journal of Inorganic Chemistry. 1990;35(4): 835–838. (In Russ.)
Khaikina E. G., Bazarova Zh. G., Solodovnikov S. F., Klevtsova R. F. Troinye molibdaty kak osnova novykh perspektivnykh slozhnooksidnykh materialov [Ternary molybdates as a basis for new promising complex oxide materials]. Engineering Ecology.2011;1: 48–54. (In Russ.)
Kozhevnikova N. M., Kopylova O. A. Synthesis and electrophysical properties of ternary molybdates Li3Ba2R3(MoO4)8 , R – La–Lu. Russian Journal of Applied Chemistry. 2011;84(3): 384-387. https://doi.org/10.1134/S1070427211030086
Kozhevnikova N. M. Synthesis and luminescence properties of a Li3Ba2La3(MoO4)8:Er3+ phosphor with a scheelite-like structure. Inorganic Materials.2019;55(6): 607–611. https://doi.org/10.1134/S0020168519060098
Kozhevnikova N. M., Batueva S. Yu. Synthesis and study of the luminescent properties of the phosphor Li3Ba2Y3(MoO4)8: Tb3+ layered scheelite-like structure. Inorganic Materials. 2019;55(11): 1162–1166. https://doi.org/10.1134/S0020168519110074
Kozhevnikova N.M., Batueva S.Yu. Erbium-doped upconversion phosphor in the Li2MoO4–BaMoO4–Y2(MoO4)3 system. Inorganic Materials. 2020;56(3):286–291. https://doi.org/10.1134/S0020168520030085
Hu J., Gong X., Huang J., Chen Y., Lin Y., Luo Z., Huang Y. Near ultraviolet excited Eu3+ doped Li3Ba2La3(WO4)8 red phosphors for white light emitting diodes. Optical Materials Express. 2016;6(1): 181–190. https://doi.org/10.1364/OME.6.000181
Li H., Zhang L., Wang G. Growth, structure and spectroscopic characterization of a new laser crystals Nd3+: Li3Ba2Gd3(WO4)8. Journal of Alloys and Compounds.2009;478: 484–488. https://doi.org/10.1016/j.jallcom.2008.11.079
Xiao B., Lin Z., Zhang L., Huang Y., Wang G. Growth, thermal and spectral properties of Er3+-doped and Er3+/Yb3+-codoped Li3Ba2La3(WO4)8 crystals. PLoSONE. 2012;7(7): e40631. https://doi.org/10.1371/journal.pone.0040631
Pan Y., Chen Y., Lin Y., Gong X., Huang J., Luo Z., Huang Y. Structure, spectral properties and laser performance of Tm3+-doped Li3Ba2La3(WO4)8 crystal. CrystEngComm. 2012;14: 3930. https://doi.org/10.1039/C2CE25190F
Li H., Lin Z., Zhang L., Huang Y., Wang G. Spectroscopic characteristics of Yb3+-doped Li3Ba2Y3(WO4)8 crystal. Journal of Luminescence. 2012;132(6): 1507–1510. https://doi.org/10.1016/j.jlumin.2012.01.050
Hu J., Gong X., Huang J., Chen Y., Lin Y., Luo Z., Huang, Y. Near ultraviolet excited Eu3+ doped Li3Ba2La3(WO4)8 red phosphors for white light emitting diodes Optical Materials Express. 2016;6(1): 181.
https://doi.org/10.1364/OME.6.000181
Zeng X.-L., Zhang J.-Y., Chen D.-G., Huang F. Crystal structure and spectroscopic sroperties of a new ternary tungstate Li3Ba2Ho3(WO4)8. Chinese Journal of Structural Chemistry. 2013;1: 33–38. Available at: http://caod.oriprobe.com/articles/32299408/Crystal_Structure_and_Spectroscopic_Properties_of_a_New_Ternary_Tungst.htm
Guo W. L., Jiao Y. T., Wang P. S., Liu Q., Liu S., HouF. Energytransfer and spectroscopic characterization of new greenemitting Li3Ba2Gd3(WO4)8:Tb3+ phosphor. Solid State Phenomena. 2018;281: 686–691. https://doi.org/10.4028/www.scientific.net/ssp.281.686
Wei B., Liu Z., Xie C., Yang S., Tang W., Gu A., Wong W.-T., Wong K.-L. Fast synthesis of red Li3BaSrLn3(WO4)8:Eu3+ phosphors for white LEDs undernear-UV excitation by a microwave-assisted solid state
reaction method and photoluminescence studies. Journal of Materials Chemistry C. 2015;3(47): 12322.
https://doi.org/10.1039/c5tc03165f
Singh K., Vaidyanathan S. Synthesis and optical properties of new redemittingphosphor Li3BaSrGd3–xEux(MO4)8 for white LEDs. Chemistry Select. 2017;1(17): 5448–5462. https://doi.org/10.1002/slct.201601183
Li H., Wang G., Zhang L., Huang Y., Wang G. Growth and structure of Nd3+-doped Li3Ba2Y3(WO4)8 crystal with a disorder structure. CrystEngComm. 2010;12(4): 1307–1310. https://doi.org/10.1039/B914641E
Diagrammy sostoyaniya sistem tugoplavkikh oksidov: Spravochnik. Vyp. 5. Dvoinye sistemy. Ch. 2 [Diagrams of the state of systems of refractory oxides: Handbook. Issue 5. Binary systems. Part 2]. Leningrad: Nauka; 1986. 359 p. (In Russ.)
ICDD PDF-2 Data Base, Cards ## 00-053-0670, 00-029-0193, 01-070-1396, 01-079-2006, 01-085-0588, 01-085-1267, 01-085-0586, 00-007-0209, 00-044-1486, 00-041-1431, 00-008-0490, 00-014-0676, 00-019-0708
Smith G. S., Snyder R. L. FN: A criterion for rating powder diffraction patterns and evaluating the reliability of powder-pattern indexing. Journal of Applied Crystallography. 1979;12(1): 60–65. https://doi.org/10.1107/s002188987901178x
ICDD PDF-2 Data Base, Cards ## 00-051-1725, 01-070-0869, 00-039-0256
Copyright (c) 2021 Kondensirovannye sredy i mezhfaznye granitsy = Condensed Matter and Interphases
This work is licensed under a Creative Commons Attribution 4.0 International License.