Nuclear Techniques ›› 2016, Vol. 39 ›› Issue (10): 100101-100101.doi: 10.11889/j.0253-3219.2016.hjs.39.100101

• SYNCHROTRON RADIATION TECHNOLOGY AND APPLICATIONS •     Next Articles

A novel apparatus for operando rapid characterization on real reaction: design and application

WU Hao1,2,3, YANG Yong1,2, Jerry Pui Ho Li2, LIU Zebang2, LUO Yang2, FAN Minghui2   

  1. 1 Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China;
    2 ShanghaiTech University, Shanghai 201210, China;
    3 University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2016-07-26 Revised:2016-08-29 Online:2016-10-10 Published:2016-10-13
  • Supported by:

    Supported by National Natural Science Foundation of China (No.21573148), Shanghai Pujiang Program (No.15PJ1405800) First author: WU Hao, male, born in 1989, graduated from China University of Mining and Technology in 2011, master student, focusing on operando analysis

Abstract:

Background: Heterogeneous catalysis plays an important role in current energy industry, which demands a deep insight of the catalysis mechanism. In most catalyst related studies, online characterization methods that can yield fast evaluation results and kinetics information under industrial reaction conditions are always desired. Purpose: A novel apparatus for operando catalytic characterization with high flexibility of controlling reaction conditions is introduced. Methods: It performs accurate temperature control from liquid nitrogen region to~500℃ and allows mass spectroscopy (MS) online characterization from atmosphere to high pressure. Results: The apparatus is applied for a temperature programmed desorption (TPD) staring from -150℃ on an Au/TiO2 catalyst CO pre-adsorbed surface. Results show that the setup performs temperature control with good flexibility at low temperature. Conclusion: The apparatus combines features of both wide range temperature controlling and high sensitivity characterization under pressurized conditions, which makes it a powerful tool for understanding catalysis behavior under ambient or high pressure conditions.

Key words: Heterogeneous catalysis, Operando analysis, Low temperature control, High pressure reaction

CLC Number: 

  • O652.7