The feasibility of indium introduction into the hydrocalumite group of layered double hydroxides (LDHs) was investigated for the first time. Mechanochemical and co-precipitation techniques were applied in the syntheses. During the development of preparation, a yet unknown CaIn chloride-hydroxide solid side-product was found and synthesized in phase-pure state. The as-prepared materials were characterized by X-ray diffractometry, Fourier-transform infrared, Raman, and UV–Vis diffuse reflectance spectroscopies. Their thermal behavior was mapped up to 900 °C, while the surface and textural attributes were studied by scanning and transmission electron microscopies, specific surface area measurements and pore size analysis. For the LDH, the Ca_2.3InCl(OH)_6.6·4H₂O and for the side-product, the Ca₃In₄Cl₂(OH)₁₆·6H₂O stoichiometric formula was calculated. Various further hydrocalumites (M(III): Al³⁺, Sc³⁺, V³⁺, Cr³⁺, Fe³⁺, Ga³⁺) were synthesized, their surface basicity was investigated by CO₂ temperature programmed desorption. These materials and the indium-containing phases were tested as catalysts in the transesterification reactions of dimethyl carbonate with glycerol. All solids proved to be active: their glycerol conversion capabilities and recycling abilities were determined and compared to the well-known Mg-, Ni-, Co–, Zn-based hydrotalcites.

首次研究了将铟引入层状双氢氧化物（LDHs）的水铝钙石组的可行性。在合成过程中采用了机械化学和共沉淀技术。在制备过程中，发现了未知的CaIn氯化物-氢氧化物固体副产物，并以纯相合成。所制备的材料通过X射线衍射，傅立叶变换红外，拉曼和UV-Vis漫反射光谱学进行表征。将它们的热行为映射到最高900°C，同时通过扫描和透射电子显微镜，比表面积测量和孔径分析研究表面和纹理属性。对于LDH，Ca _2.3 InCl（OH）_6.6 ·4H ₂O和副产物，计算出Ca ₃ In ₄ Cl ₂（OH）₁₆ ·6H ₂ O化学计量公式。合成了其他各种水钙铝石（M（III）：Al ³⁺，Sc ³⁺，V ³⁺，Cr ³⁺，Fe ³⁺，Ga ³⁺），并通过CO ₂研究了它们的表面碱性。程序升温脱附。在碳酸二甲酯与甘油的酯交换反应中，将这些材料和含铟的相作为催化剂进行了测试。事实证明，所有固体均具有活性：确定了它们的甘油转化能力和回收能力，并将其与众所周知的基于Mg，Ni，Co，Zn的水滑石粉进行比较。