Chinese Journal of Catalysis ›› 2017, Vol. 38 ›› Issue (1): 13-19.DOI: 10.1016/S1872-2067(17)62751-7

• Communication • Previous Articles     Next Articles

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

Jiaxu Liua, Jilei Wanga, Wei Zhoua, Cuilan Miaoa, Guang Xionga, Qin Xinb, Hongchen Guoa   

  1. a Department of Catalytic Chemistry and Engineering & State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116012, Liaoning, China;
    b State Key Laboratory for Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China
  • Received:2016-11-18 Revised:2016-12-08 Online:2017-01-18 Published:2017-01-18
  • Contact: Hongchen Guo,Tel/Fax:+86-411-84986120;E-mail:hongchenguo@163.com
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (21603023), and the PetroChina Innovation Foundation, China (2014D-5006-0501).

Abstract:

An operando dual-beam Fourier transform infrared (DB-FTIR) spectrometer was successfully de-veloped 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 condi-tions 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.

Key words: 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