Co-doped micro-mesoporous SAPO-11 zeolite (Co-MSAPO-11) was synthesized and used for hydrogenolysis of glycerol. After simultaneous introduction of Co and mesopores, the pore structure and acidic properties of microporous SAPO-11 zeolite are reintegrated. The larger mesopores of Co-MSAPO-11 facilitate the diffusion of molecules and provide more space for the highly dispersed Co species. The appropriate acidity of Co-MSAPO-11 with more Lewis acid sites appears to be more helpful for the activation of reactants to intermediates, potentially increasing the probability of high selectivity to 1,2-propanediol. Therefore, Co-MSAPO-11 shows unique catalytic performance with a glycerol conversion of 94.0% and selectivity to 1,2-PDO of 90.5% under mild conditions. The possible representative model of Co-MSAPO-11 is proposed for the first time.

中文翻译：

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用于甘油氢解的Co掺杂微介孔SAPO-11沸石的合成

合成了共掺杂微介孔 SAPO-11 沸石 (Co-MSAPO-11) 并将其用于甘油的氢解。在同时引入 Co 和中孔后，微孔 SAPO-11 沸石的孔结构和酸性性能重新整合。Co-MSAPO-11 较大的介孔促进了分子的扩散，并为高度分散的 Co 物种提供了更多空间。具有更多路易斯酸位点的 Co-MSAPO-11 的适当酸度似乎更有利于将反应物活化为中间体，从而可能增加对 1,2-丙二醇的高选择性的可能性。因此，Co-MSAPO-11 在温和条件下显示出独特的催化性能，甘油转化率为 94.0%，对 1,2-PDO 的选择性为 90.5%。Co-MSAPO-11的可能代表模型首次被提出。