Cruz-Quesada Guillermo, Espinal-Viguri Maialen, López-Ramón María Victoria, Garrido Julián J
Institute for Advanced Materials and Mathematics (INAMAT2), Department of Science, Public University of Navarre (UPNA), Campus Arrosadia, 31006 Pamplona, Spain.
Department of Inorganic and Organic Chemistry, Faculty of Experimental Sciences, University of Jaen, 23071 Jaen, Spain.
Gels. 2022 Oct 20;8(10):677. doi: 10.3390/gels8100677.
The search for new materials with improved properties for advanced applications is, nowadays, one of the most relevant and booming fields for scientists due to the environmental and technological needs of our society. Within this demand, hybrid siliceous materials, made out of organic and inorganic species (ORMOSILs), have emerged as an alternative with endless chemical and textural possibilities by incorporating in their structure the properties of inorganic compounds (i.e., mechanical, thermal, and structural stability) in synergy with those of organic compounds (functionality and flexibility), and thus, bestowing the material with unique properties, which allow access to multiple applications. In this work, synthesis using the sol-gel method of a series of new hybrid materials prepared by the co-condensation of tetraethoxysilane (TEOS) and 4-chlorophenyltriethoxysilane (ClPhTEOS) in different molar ratios is described. The aim of the study is not only the preparation of new materials but also their characterization by means of different techniques (FT-IR, Si NMR, X-ray Diffraction, and N/CO adsorption, among others) to obtain information on their chemical behavior and porous structure. Understanding how the chemical and textural properties of these materials are modulated with respect to the molar percentage of organic precursor will help to envisage their possible applications: From the most conventional such as catalysis, adsorption, or separation, to the most advanced in nanotechnology such as microelectronics, photoluminescence, non-linear optics, or sensorics.
如今，由于我们社会的环境和技术需求，寻找具有改进性能以用于先进应用的新材料是科学家们最相关且蓬勃发展的领域之一。在这种需求下，由有机和无机物种制成的杂化硅质材料（ORMOSILs）已经出现，成为一种具有无尽化学和结构可能性的替代材料，通过在其结构中结合无机化合物的特性（即机械、热和结构稳定性）与有机化合物的特性（功能性和灵活性）协同作用，从而赋予材料独特的性能，使其能够应用于多种领域。在这项工作中，描述了使用溶胶 - 凝胶法合成一系列通过四乙氧基硅烷（TEOS）和4 - 氯苯基三乙氧基硅烷（ClPhTEOS）以不同摩尔比共缩合制备的新型杂化材料。该研究的目的不仅是制备新材料，还通过不同技术（傅里叶变换红外光谱、硅核磁共振、X射线衍射和氮/二氧化碳吸附等）对其进行表征，以获取有关其化学行为和多孔结构的信息。了解这些材料的化学和结构性质如何随有机前驱体的摩尔百分比进行调节，将有助于设想它们可能的应用：从最传统的如催化、吸附或分离，到纳米技术中最先进的如微电子、光致发光、非线性光学或传感领域。
