Abstract
We have synthesized CexZr1–xO2 solid solutions via the thermal decomposition of xerogels of different compositions prepared by drying appropriate hydrosols. The synthesized materials have been characterized by thermal analysis, X-ray diffraction, and Raman spectroscopy. The results demonstrate that the solid solutions are formed at relatively low temperatures (450–600°C). The CexZr1–xO2 samples with x = 0.5–0.9 consist of a cubic solid solution. At a lower CeO2 content (x = 0.2), the material consists of a mixture of cubic and tetragonal phases.
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Kumar, A., Jaiswal, A., Sanbui, M., and Omar, S., Scandia stabilized zirconia-ceria solid electrolyte (xSc1CeSZ, 5 < x < 11) for IT-SOFCs: structure and conductivity studies, Scr. Mater., 2016, vol. 121, pp. 10–13.
Abdollahzadeh, G.S., Zamani, C., Nazarpour, S., et al., Oxygen sensing with mesoporous ceria–zirconia solid solutions, Sens. Actuators, B, 2009, vol. 140, no. 1, pp. 216–221.
Mosunov, A.V. and Podzorova, L.I., Dielectric properties and electrical conductivity of ZrO2–CeO2 ceramics, Inorg. Mater., 2008, vol. 44, no. 7, pp. 785–790.
Brykin, A.V., Artemov, A.V., and Kolegov, K.A., Analysis of the market of rare-earth elements (REEs) and REE catalysts, Catal. Ind., 2014, vol. 6, no. 1, pp. 1–7.
Thammachart, M., Meeyoom, V., Riskomboon, T., et al., Catalytic activity of CeO2–ZrO2 mixed oxides catalysts prepared via sol–gel technique: CO oxidation, Catal. Today, 2001, vol. 68, pp. 53–61.
Trovarelli, A., Boardo, M., Rocchini, E., et al., Some recent developments in the characterizations of ceriabased catalysts, J. Alloys Compd., 2001, vols. 323–324, pp. 584–591.
Sobukawa, H., Development of ceria–zirconia solid solutions and future trends, R&D Rev. Toyota CRDL, 2002, vol. 37, no. 4, pp. 1–4.
Yashima, M., Arashi, H., Kakihana, M., et al., Ramanscattering study of cubic–tetragonal phase transition in Zr1–xCexO2 solid solution, J. Am. Ceram. Soc., 1994, vol. 77, no. 4, pp. 1067–1074.
Zhang, F., Chen, C.-H., and Hanson, J.C., Phases in ceria–zirconia binary oxide (1–x)CeO2–xZrO2 nanoparticles: the effect of particles size, J. Am. Ceram. Soc., 2006, vol. 89, no. 3, pp. 1028–1036.
Rossignol, S., Madier, Y., and Duprez, D., Preparation of zirconia–ceria materials by soft chemistry, Catal. Today, 1999, vol. 50, pp. 261–270.
Li, X., Feng, J., Fan, H., Wang, Q., and Li, W., The dehydrogenation of ethylbenzene with CO2 over CexZr1–xO2 solid solutions, Catal. Commun., 2015, vol. 59, pp. 104–107.
Hirano, M., Miwa, T., and Inagak, M., Low temperature direct synthesis of nanoparticles of fluorite-type ceria–zirconia solid solutions by forced hydrolysis at 100°C, J. Solid State Chem., 2001, vol. 158, pp. 112–117.
Hirano, M. and Hirai, K., Effect of hydrolysis conditions on the direct formation of nanoparticles of ceria–zirconia solid solutions from acidic aqueous solutions, J. Nanopart. Res., 2003, vol. 5, pp. 147–156.
Rumruangwong, M. and Wongkasemjit, S., Synthesis of ceria–zirconia mixed oxide from cerium and zirconium glycolates via sol–gel process and its reduction properties, Appl. Organomet. Chem., 2006, vol. 20, pp. 615–625.
Liotta, L.F., Pantaleo, G., Macaluso, A., et al., Ceria–zirconia nanostructured materials for catalytic applications: textural characteristics and redox properties, J. Sol–Gel Sci. Technol., 2003, vol. 28, pp. 119–132.
Luo, X., Zhu, B., Xia, C., et al., Transparent ion-conducting ceria–zirconia films made by sol–gel technology, Solar Energy Solar Cells, 1998, vol. 53, pp. 341–347.
Trusova, E.A., Khrushcheva, A.A., and Vokhmintcev, K.V., Sol–gel synthesis and phase compositions of ultrafineceria-doped zirconia powders for functional ceramics, J. Eur. Ceram. Soc., 2012, vol. 32, pp. 1977–1981.
Gavrilova, N.N. and Nazarov, V.V., Synthesis of CeO2–ZrO2 hydrosols via peptization at room temperature, Colloid J., 2010, vol. 72, no. 4, pp. 471–477.
Gavrilova, N.N. and Nazarov, V.V., Synthesis of CeO2–ZrO2 hydrosols via peptization at elevated temperature, Colloid J., 2010, vol. 72, no. 6, pp. 756–763.
Gavrilova, N.N., Zhilina, O.V., and Nazarov, V.V., Synthesis of mixed cerium–zirconium oxides by the sol–gel method, Russ. J. Appl. Chem., 2007, vol. 80, no. 9, pp. 1468–1471.
Reddy, B.M., Saikia, P., Bharali, P., et al., Highly dispersed ceria and ceria-zirconia nanocomposites over silica surface for catalytic applications, Catal. Today, 2009, vol. 141, pp. 109–114.
Bensaid, S., Piumetti, M., Novara, C., et al., Catalytic oxidation of CO and soot over Ce–Zr–Pr mixed oxides synthesized in a multi-inlet vortex reactor: effect of structural defects on the catalytic activity, Nanoscale Res. Lett., 2016, paper 11:494.
Chen, L., Fleming, P., Morris, V., et al., Size-related lattice parameter changes and surface defects in ceria nanocrystals, J. Phys. Chem. C, 2010, vol. 114, pp. 12909–12919.
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Original Russian Text © N.N. Gavrilova, V.V. Nazarov, 2018, published in Neorganicheskie Materialy, 2018, Vol. 54, No. 8.
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Gavrilova, N.N., Nazarov, V.V. Sol–Gel Synthesis and Distinctive Structural Features of CexZr1–xO2 Solid Solutions. Inorg Mater 54, 831–839 (2018). https://doi.org/10.1134/S0020168518080071
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DOI: https://doi.org/10.1134/S0020168518080071