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Ionic liquid-based 3DOM meso/macroporous Mo/TiO2 materials with superior oxidation desulfurization performance at room temperature
Materials Research Bulletin ( IF 5.4 ) Pub Date : 2020-06-01 , DOI: 10.1016/j.materresbull.2020.110849
Yue Du , Lina Zhou , Zhenhui Liu , Jiaheng Lei , Junsheng Li

Abstract Ionic liquid-based Mo/TiO2 catalyst with highly ordered meso/macroporous structure has been fabricated by two steps self-assembling and applied as catalyst for desulfurization in model fuel. The introduction of ordered secondary mesopores into interconnected macropores not only facilitates mass transfer efficiency of reactant molecules on pore channel, but also increases the internal exposed surface through ordered mesopores. Therefore, the catalytic activity of porous ionic liquid-based Mo/TiO2 catalyst on aromatic sulfur compounds has been significantly improved, 500 ppm of dibenzothiophene (DBT) in model fuel can be successfully removed within 100 min at room temperature. Furthermore, the selectivity for DBT oxidation of catalyst has also been explored in the presence of typical components in real fuel (alkane, olefine and aromatics). As-fabricated catalyst also exhibits excellent reusability even after 10 runs, which makes it a promising catalyst in industry.

中文翻译:

基于离子液体的 3DOM 介孔/大孔 Mo/TiO2 材料在室温下具有优异的氧化脱硫性能

摘要 通过两步自组装制备了具有高度有序介孔/大孔结构的离子液体基Mo/TiO2催化剂,并应用于模型燃料的脱硫催化剂。将有序的二级介孔引入相互连接的大孔不仅有利于反应物分子在孔道上的传质效率,而且通过有序的介孔增加了内部暴露表面。因此,多孔离子液体基Mo/TiO2催化剂对芳香族硫化合物的催化活性得到显着提高,模型燃料中500 ppm的二苯并噻吩(DBT)在室温下100分钟内即可成功去除。此外,在实际燃料中存在典型组分(烷烃、烯烃和芳烃)的情况下,还探索了催化剂 DBT 氧化的选择性。
更新日期:2020-06-01
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