Abstract

In this paper, a novel V₂O₅/HZSM-5 catalyst was prepared and characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray spectroscopy, mapping, inductively coupled plasma spectrometry, nitrogen physical desorption and X-ray photoelectron spectroscopy in order to expound the structure-activity relationship. The results showed that the conversion of benzene was 73.5%, the selectivity of phenol was over 99.0% under the optimal reaction conditions, and the stability of catalyst was also effectively improved.

中文翻译：

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新型V 2 O 5 / HZSM-5催化剂对苯羟基化催化活性的提高

摘要

本文制备了一种新型的V ₂ O ₅ / HZSM-5催化剂，并通过X射线衍射，傅里叶变换红外光谱，扫描电子显微镜，透射电子显微镜，能量色散X射线光谱，作图，归纳法进行了表征。耦合等离子体光谱法，氮气物理解吸法和X射线光电子能谱法，以阐明其结构活性关系。结果表明，在最佳反应条件下，苯的转化率为73.5％，苯酚的选择性超过99.0％，催化剂的稳定性也得到有效提高。