The modulation and characterization of the acidity of a vermiculite were carried out, which was modified by delamination by means of hydrothermal and acid treatments with the subsequent incorporation of AlZr and AlCe species to modulate the acidity. The effect of these species was evaluated regarding the structural (XRD, XPS and IR), textural (N 2 sortometry) and acidity properties (NH 3 -TPD, NH 3 -DRIFTS and CO adsorption at low temperature). The catalytic performance was studied in the dehydration–dehydrogenation reactions of 2-propanol and the hydroconversion of decane, which generate important information about the acidity properties such as the type, number and strength of acidic sites. The correlation between the number, type and acid strength with the catalytic behavior allowed to establish the important effect regarding the nature of the mineral, its method of delamination and the nature of the incorporated cation, thus generating tools for controlled processes for the potentiation of the acidity of new supports from raw vermiculite.

中文翻译：

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蛭石酸度的调节及其作为催化载体的潜在用途

对蛭石的酸度进行了调节和表征，通过水热和酸处理进行分层改性，随后掺入 AlZr 和 AlCe 物质以调节酸度。通过结构（XRD、XPS 和 IR）、结构（N 2 分选法）和酸度特性（NH 3 -TPD、NH 3 -DRIFTS 和低温下的 CO 吸附）评估这些物质的影响。在 2-丙醇的脱水-脱氢反应和癸烷的加氢转化中研究了催化性能，这产生了关于酸性性质的重要信息，如酸性位点的类型、数量和强度。数之间的相关性，