Construction of an operando dual-beam fourier transform infrared spectrometer and its application in the observation of isobutene reactions over nano-sized HZSM-5 zeolite

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• 作者：Jiaxu Liu^a ; Jilei Wang^a ; Wei Zhou^a ; Cuilan Miao^a ; Guang Xiong^a ; Qin Xin^b ; Hongchen Guo^a ; ^{hongchenguo@163.com}
• 关键词：Operando DB-FTIR ; Gas-phase molecular vibration spectroscopy ; Heat irradiation influence ; Real-time spectrum ; Real reaction condition ; Heterogeneous catalysis ; Aromatization ; Nano-sized HZSM-5 zeolite
• 刊名：Chinese Journal of Catalysis
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：38
• 期：1
• 页码：13-19
• 全文大小：829 K
• 卷排序：38

文摘

An operando dual-beam Fourier transform infrared (DB-FTIR) spectrometer was successfully developed using a facile method. The DB-FTIR spectrometer is suitable for the real-time study of the dynamic surface processes involved in gas/solid heterogeneous catalysis under real reaction conditions because it can simultaneously collect reference and sample spectra. The influence of gas-phase molecular vibration and heat irradiation at real reaction temperatures can therefore be eliminated. The DB-FTIR spectrometer was successfully used to follow the transformation of isobutene over nano-sized HZSM-5 zeolite under real reaction conditions.