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Application of molecular spectroscopy in catalytic research

Application of molecular spectroscopy in catalytic research

Catalysts play an important role in the development of chemical industry and society. Catalysts promote the reform and development of chemical industry. However, with the process of industrialization in various countries, the development of chemical industry also brings some environmental problems. Developing clean, efficient and environment-friendly green catalysts is a major challenge in industrial catalysis.

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Fourier transform infrared spectroscopy has the advantages of high precision, high luminous flux, high sensitivity, high characteristics and fast scanning speed. It can study the steady-state and dynamic sample information. It is convenient for catalyst characterization and has mature and wide application. It is mainly used to study the surface composition of the catalyst, the types of acid sites on the surface of solid acid catalyst (L acid, B acid), the surface adsorption state, the interaction between the support and additives and the interaction with the active components. Combined with various sampling modes, in-situ cell (transmission, diffuse reflection) and in-situ infrared spectroscopy combined with ultra-high vacuum chamber (UHV), it is easy to realize in-situ spectral analysis of various temperatures, pressures, atmospheres and light. Combined with Fourier transform infrared time-resolved function, it has been widely used and favored in the study of gas-solid catalytic reaction mechanism and reaction kinetics.


Post time: May-19-2022