Abstract
The ability of layered perovskite-like titanates HLnTiO4 and H2Ln2Ti3O10 (Ln = La, Nd) to exfoliate into nanosheets in aqueous media under various conditions has been studied. Along with protonated titanates, their inorganic-organic hybrids with methylamine and n-butylamine were used as precursors for lamination. Exfoliation was carried out according to chemical and physical-chemical strategies, including stirring of initial compounds in diluted aqueous tetrabutylammonium hydroxide solution and sonication of the same mixtures, respectively. It was demonstrated that among the compounds under consideration, the methylamine derivative exfoliation degree is the highest. Successful obtainment of nanolayers with linear sizes of 30–100 nm for all the titanates considered was confirmed.
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ACKNOWLEDGMENTS
Authors are grateful to the Saint Petersburg State University Research Park: Centre for X-ray Diffraction Studies, Centre for Optical and Laser Research, Centre for Chemical Analysis and Materials Research, Centre for Thermal Analysis and Calorimetry, Interdisciplinary Centre for Nanotechnology, Centre for Innovative Technologies of Composite Nanomaterials.
Funding
The research was supported by the Russian Science Foundation (20-73-00027). The initial methylamine and n‑butylamine derivatives were obtained and studied within the grant of the President of the Russian Federation (МК-480.2020.3).
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Kurnosenko, S.A., Silyukov, O.I., Minich, I.A. et al. Exfoliation of Methylamine and n-Butylamine Derivatives of Layered Perovskite-Like Oxides HLnTiO4 and H2Ln2Ti3O10 (Ln = La, Nd) into Nanolayers. Glass Phys Chem 47, 372–381 (2021). https://doi.org/10.1134/S1087659621040131
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DOI: https://doi.org/10.1134/S1087659621040131