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Preparation of highly active and dispersed platinum nanoparticles on mesoporous Al-MCM-48 and their activity in the hydroisomerisation of n-octane

机译:介孔Al-MCM-48上高活性分散铂纳米粒子的制备及其在正辛烷加氢异构化中的活性

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摘要

Platinum nanoparticles supported on Al-MCM-48 materials have been prepared. The resultant catalysts have been characterized by means of XRD, N-2 physisorption experiments, scanning electron microscopy (SEM), transmission electron microscopy (TEM), temperature-programmed reduction (TPR), and diffuse reflectance infrared Fourier-transform spectroscopy (DRIFTS). The activity of these nanoparticles has been tested in relation to the hydroisomerisation of n-octane. The catalytic activities were typically 50%, with selectivities in the isomerisation process in excess of 70%, favouring the formation of the 3-methylheptane isomer with respect to the 2- and 4-methylheptanes.
机译:已经制备了负载在Al-MCM-48材料上的铂纳米颗粒。通过XRD,N-2物理吸附实验,扫描电子显微镜(SEM),透射电子显微镜(TEM),程序升温还原(TPR)和漫反射红外傅里叶变换光谱(DRIFTS)对所得催化剂进行了表征。 。这些纳米颗粒的活性已经过与正辛烷的加氢异构化有关的测试。催化活性通常为50%,在异构化过程中的选择性超过70%,有利于相对于2-和4-甲基庚烷形成3-甲基庚烷异构体。

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