Monodispersed mesoporous SBA-15 silica was synthesized by adding n-decane to conventional synthesis recipe. Pd catalysts for 2-alkyl-anthraquinone hydrogenation were then prepared on the as-synthesized SBA-15 and characterized by scanning and transmission electron micrographs, X-ray diffraction, XPS spectroscopy and N₂ adsorption-desorption. At the molar ratio of n-decane to P123 (C10/P123) ranging between 120 and 240, monodispersed SBA-15, together with the shortened length of pore channels, expanded size of mesopores and decreased proportion of micropores could be obtained. The Pd catalyst on SBA-15 synthesized with 240 in C10/P123 exhibited the superior catalytic performance. The initial hydrogenation rate of 2-ethyl-, tert-butyl- and amyl-anthraquinone increases by approximately 300%, 183% and 150% compared with that on SBA-15 synthesized using a recipe without n-decane, with the selectivity to active anthraquinone of >99%.

通过在常规合成配方中添加正癸烷来合成单分散的中孔SBA-15二氧化硅。然后在合成的SBA-15上制备了2-烷基蒽醌加氢的Pd催化剂，并通过扫描电子显微镜，X射线衍射，XPS光谱和N ₂吸附-脱附表征。在n的摩尔比下癸烷至P123（C10 / P123）的范围为120至240，单分散的SBA-15，以及缩短的孔道长度，扩大的中孔尺寸和降低的微孔比例。C10 / P123中240合成的SBA-15上的Pd催化剂表现出优异的催化性能。与使用无正癸烷配方合成的SBA-15相比，2-乙基，叔丁基和戊基蒽醌的初始氢化率分别提高了约300％，183％和150％。蒽醌> 99％。