Polyoxometalate-based ionic liquid supported on graphite carbon induced solvent-free ultra-deep oxidative desulfurization of model fuels
Polyoxometalate-based ionic liquid supported on graphite carbon induced solvent-free ultra-deep oxidative desulfurization of model fuels
复制标题
石墨碳负载多金属氧酸盐离子液体诱导模型燃料无溶剂超深度氧化脱硫
DOI：
10.1016/j.fuel.2016.11.024
复制
发表时间：
2017-02-15
期刊：
影响因子：
7.4
通讯作者：
Li, Huaming
中科院分区：
文献类型：
--
作者：
Jiang, Wei;Zheng, Dan;Li, Huaming
以多金属氧酸盐离子液体(POM-IL)[N-(3-磺酸丙基)吡啶]3PMo12O40([PSPy]PMO)为活性组分，以层状结构的石墨炭(GC)为载体，制备了负载型多相催化剂。通过红外光谱、拉曼光谱、X射线衍射仪、X射线光电子能谱和透射电子显微镜对负载型催化剂进行了表征，证实了负载型催化剂经水热浸渍后，成功地将IL负载到了GC上，并保持了其结构。所制备的催化剂在无溶剂氧化脱硫体系中表现出较高的催化性能。考察了各种反应条件，在最佳反应条件下，二苯并噻吩酚的脱除效率可达100%。为了更好地理解氧化反应，进行了润湿性实验和动力学研究。此外，结合气相色谱-质谱仪的分析，给出了可能的机理。此外，负载型催化剂具有良好的可回收性，具有良好的工业应用前景。(C)2016爱思唯尔有限公司。保留所有权利。
A supported heterogeneous catalyst with polyoxometalate-based ionic liquid (POM-IL) [N-(3-sulfonate propyl)-pyridinium] 3PMo12O40 ([PSPy] PMo) served as active component was prepared and graphite carbon (GC) with layer structure was used as support. Characterizations of the supported catalyst by FT-IR, Raman, XRD, XPS and TEM confirmed that IL was immobilized on GC successfully and the structure was retained after the hydrothermal impregnation method. The as-prepared catalyst exhibited high catalytic performance in the solvent-free oxidative desulfurization system. Various of reaction conditions were investigated and the removal of dibenzothiophene reached 100% under the optimum conditions. Wettability experiments and kinetics studies were taken to better understand the oxidation reactions. In addition, the suggested mechanism was given with the help of Gas Chromatography-Mass Spectrometer analysis. Moreover, the supported catalyst had a good recyclability, which made it have a promising prospect for industrial application. (C) 2016 Elsevier Ltd. All rights reserved.