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Novel cerium-containing layered double hydroxide

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Nickel–aluminum–cerium layered double hydroxide (LDH) in carbonate form was successfully synthesized by co-precipitation followed by hydrothermal treatment. The predetermined molar percentage was the following: Ni2+/(Al3+ + Ce3+) = 3 and Ce3+/(Al3+ + Ce3+) = 0.05. The XRD data indicated that the cerium-containing single-phase product with a hydrotalcite structure could be obtained by hydrothermal treatment for 48 h at 120 °C. The transmission electron microscopy analysis showed that the synthesized material consisted of plate-like particles typical for hydrotalcite-like compounds. The average particle size was about 65 nm. The X-ray absorption spectroscopy revealed cerium to be incorporated into the structure of LDH in two different forms, namely 69% of Ce3+ and 31% of Ce4+ co-existed in the structure.

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Acknowledgements

The reported study was funded by RFBR according to the research project no. 18-43-310011/18 p_a. Measurements of the XANES spectra were performed at the unique scientific facility Kurchatov Synchrotron Radiation Source supported by the Ministry of Education and Science of the Russian Federation (project code: RFMEFI61917X0007). The authors are grateful to the staff of the Joint Research Center “Technology and Materials” of Belgorod State National Research University.

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Correspondence to Irina G. Ryltsova.

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Golovin, S.N., Yapryntsev, M.N., Ryltsova, I.G. et al. Novel cerium-containing layered double hydroxide. Chem. Pap. 74, 367–370 (2020). https://doi.org/10.1007/s11696-019-00877-9

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  • DOI: https://doi.org/10.1007/s11696-019-00877-9

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