A number of alumina supports were synthesized by using a homogeneous sol–gel precipitation technique. The role of organic additive and its effect on surface active sites as well as textural properties have been analyzed. The support was characterized by N₂ adsorption–desorption, X-ray diffraction (XRD). fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and thermal gravimetric and differential scanning calorimetry analysis (TGA/DSC). The surface functional group characterization was carried out by using isopropanol (IPA) as a probe molecule for the acid–base site identification. The solid was used as support for a catalyst and to compare active metal site genesis as a supported catalyst where thiophene reaction was carried out, and activity was compared with the commercial alumina support. The characterization results indicated that the pore enlarging agent (poly (ethylene) glycol, PEG) improve not only textural properties but also significantly modified surface properties, which was evident during the hydrodesulfurization (HDS) of thiophene.

中文翻译：

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氧化铝载体的合成及其性能对噻吩加氢脱硫的影响

通过使用均匀的溶胶-凝胶沉淀技术合成了许多氧化铝载体。分析了有机添加剂的作用及其对表面活性部位的影响以及质构性质。该支持物的特征在于N ₂吸附-解吸，X射线衍射（XRD）。傅立叶变换红外光谱（FTIR），扫描电子显微镜（SEM）以及热重和差示扫描量热分析（TGA / DSC）。表面官能团的表征是通过使用异丙醇（IPA）作为用于酸碱位点鉴定的探针分子进行的。将该固体用作催化剂的载体，并比较活性金属位点的生成作为进行噻吩反应的载体催化剂，并将活性与市售氧化铝载体进行比较。表征结果表明，扩孔剂（聚（乙二醇）乙二醇，PEG）不仅改善了织构性质，而且显着改善了表面性质，这在噻吩的加氢脱硫（HDS）过程中很明显。