Abstract A novel tert-butyl hydroperoxide tetrasubstituted cobalt phthalocyanine (CoPc(OC10H14N)4) was synthesized by the classical phthalonitrile method. Subsequently, the cobalt phthalocyanine (CoPc) was immobilized on the multi-walled carbon nanotubes (MWCNTs) by ultrasonic impregnation method to obtain CoPc(OC10H14N)4/MWCNTs composites. The obtained composites were characterized by Fourier transform infrared spectra (FT-IR), X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscope (SEM) and diffuse reflectance spectra (DRS) techniques. Using tert-butyl hydroperoxide (TBHP) as an environmentally friendly oxidant, CoPc(OC10H14N)4/MWCNTs composites can be used as effective catalysts for the epoxidation of styrene. The effects of various variables, such as the mass ratio of CoPc(OC10H14N)4/MWCNTs, reaction time, temperature, molar ratio of substrate/oxidant and the amount of catalyst on the catalytic capability were evaluated. The conversion of styrene reached 97.15%, and the epoxidation product achieved the selectivity of 84.44% under the optimal reaction conditions.

中文翻译：

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四取代钴（II）酞菁/多壁碳纳米管作为使用叔丁基氢过氧化物选择性氧化苯乙烯的新型高效催化剂

摘要 采用经典邻苯二甲腈法合成了一种新型的叔丁基过氧化氢四取代钴酞菁(CoPc(OC10H14N)4)。随后，通过超声浸渍法将钴酞菁（CoPc）固定在多壁碳纳米管（MWCNTs）上，得到CoPc（OC10H14N）4/MWCNTs复合材料。通过傅里叶变换红外光谱（FT-IR）、X射线衍射（XRD）、透射电子显微镜（TEM）、扫描电子显微镜（SEM）和漫反射光谱（DRS）技术对所得复合材料进行表征。CoPc(OC10H14N)4/MWCNTs复合材料使用叔丁基氢过氧化物（TBHP）作为环保氧化剂，可作为苯乙烯环氧化的有效催化剂。各种变量的影响，例如 CoPc(OC10H14N)4/MWCNTs 的质量比、反应时间、评价温度、底物/氧化剂的摩尔比和催化剂用量对催化能力的影响。在最佳反应条件下，苯乙烯的转化率达到97.15%，环氧化产物的选择性达到84.44%。