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.

中文翻译：

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层状钙钛矿状氧化物 HLnTiO4 和 H2Ln2Ti3O10 (Ln = La, Nd) 的甲胺和正丁胺衍生物剥离成纳米层

摘要

已经研究了层状钙钛矿状钛酸盐 HLnTiO ₄和 H ₂ Ln ₂ Ti ₃ O ₁₀ (Ln = La, Nd) 在各种条件下在水性介质中剥离成纳米片的能力。连同质子化钛酸盐，它们与甲胺和n 的无机-有机杂化物-丁胺用作层压的前体。根据化学和物理化学策略进行剥离，包括分别在稀释的四丁基氢氧化铵水溶液中搅拌初始化合物和对相同混合物进行超声处理。结果表明，在所考虑的化合物中，甲胺衍生物的剥离程度最高。证实了所有考虑的钛酸盐都成功获得了线性尺寸为 30-100 nm 的纳米层。