The preparation of novel wrapped carbon nanotubes poly(4-vinylpyridine)/methyl trioxorhenium based heterogeneous catalysts has been reported by two different procedures: a) the wrapping by grinding of multiwall carbon nanotubes with pre-formed adducts, respectively, [poly(4-vinylpyridine)·methyltrioxorhenium] or [poly(4-vinylpyridine)-N-oxide·methyltrioxorhenium] and, b) the loading of methyltrioxorhenium on previously wrapped multiwall carbon nanotubes with poly(4-vinylpyridine) and poly(4-vinylpyridine)-N-oxide resins. The novel catalysts were characterized by SEM, TEM, ICP-MS and XPS analyses. Both types of catalysts were efficient systems in the oxidation of recalcitrant aromatic sulfur derivatives with H₂O₂, as representative models of oxidative desulfurization processes, affording the corresponding sulfones with yields ranging from moderate to quantitative. The oxidation of a complex model fuel oil and of synthetic diesel fuel, under optimal experimental conditions, is also reported. The performance of novel catalysts was dependent on the specific procedure applied for the immobilization of the active species, and was more efficient for both model oil and synthetic diesel fuel samples (with quantitative conversions and selectivities to the corresponding sulfones), than for isolated substrates.

中文翻译：

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包裹碳纳米管的聚（4-乙烯基吡啶）/ MTO基非均相催化剂的制备，用于模型燃料和合成柴油的氧化脱硫（ODS）

已经通过两种不同的方法报道了新型包裹碳纳米管聚（4-乙烯基吡啶）/甲基三氧or基非均相催化剂的制备：a）通过分别研磨多壁碳纳米管与预先形成的加合物进行包裹[[poly（4-乙烯基吡啶）·甲基三氧杂]]或[聚（4-乙烯基吡啶）-N-氧化物·甲基三氧杂and]，b）甲基三氧杂hen在预先包裹的带有聚（4-乙烯基吡啶）和聚（4-乙烯基吡啶）-N的多壁碳纳米管上的负载-氧化物树脂。通过SEM，TEM，ICP-MS和XPS分析对新型催化剂进行了表征。两种类型的催化剂都是用H ₂ O ₂氧化顽固性芳族硫衍生物的有效体系。，作为氧化脱硫过程的代表性模型，可提供相应的砜，收率范围从中等到定量。还报道了在最佳实验条件下复杂模型燃料油和合成柴油的氧化。新型催化剂的性能取决于用于固定活性物质的特定程序，并且比分离的底物对模型油和合成柴油样品（具有定量转化率和对相应砜的选择性）更有效。