This work describes an effective method for the preparation of open-cell ceramic foams for their further use as catalyst supports. The polyurethane sponge replica technique was applied using a ceramic suspension based on a mixture of α-alumina, magnesia and titania and polyvinyl alcohol solution as a liquid component. The polyurethane sponge was etched with NaOH and covered with colloidal silica to obtain better adhesion of the slurry to the walls of the polymeric material onto it. The surface area of the ceramic carrier was increased by adding a layer of γ-alumina. Deposition of an active catalytic phase (Pt) was done by impregnation. Properties of the carriers and the final catalyst were investigated by a number of physico-chemical methods such as TEM, SEM, XRD and computer tomography. Hydrogenation of ethyl benzoylformate was performed to elucidate the catalytic properties of foam catalysts illustrating their applicability.

这项工作描述了一种制备开孔陶瓷泡沫以进一步用作催化剂载体的有效方法。聚氨酯海绵复制技术使用基于α-氧化铝、氧化镁和二氧化钛和聚乙烯醇溶液的混合物作为液体组分的陶瓷悬浮液来应用。聚氨酯海绵用NaOH蚀刻并用胶体二氧化硅覆盖以获得浆料更好地粘附在其上的聚合物材料的壁上。通过添加一层γ-氧化铝来增加陶瓷载体的表面积。活性催化相 (Pt) 的沉积是通过浸渍完成的。载体和最终催化剂的性质通过多种物理化学方法进行了研究，例如 TEM、SEM、XRD 和计算机断层扫描。