Amine-oxide materials synthesized starting from small silica particles and porous silica in combination with polyethyleneimine have been prepared by co-condensation. The materials showing different surface areas and porosity were attained for M2 and M3 with low and high surface areas, respectively. In the new porous materials prepared CO₂ adsorption capacity is enhanced at higher temperatures. The morphology of the resulting hybrid material influences the catalytic performance of salphenic cobalt catalysts in the CO₂/propylene oxide coupling reactions. Depending on the catalytic reaction conditions (catalyst, cocatalyst, CO₂ pressure and reaction temperature), high yields of the CO₂/propylene oxide-cycloaddition reaction is favored over the copolymerization reaction.

由小二氧化硅颗粒和多孔二氧化硅与聚乙烯亚胺结合而合成的氧化胺材料已经通过共缩合制备。对于具有低和高表面积的M2和M3，分别获得了显示不同表面积和孔隙率的材料。在新的多孔材料中，在较高温度下提高了对CO _2的吸附能力。所得杂化材料的形态影响在CO ₂ /环氧丙烷偶联反应中，红锌钴催化剂的催化性能。根据催化反应条件（催化剂，助催化剂，CO ₂压力和反应温度），高产率的CO ₂/环氧丙烷-环加成反应优于共聚反应。