化工进展 ›› 2019, Vol. 38 ›› Issue (01): 260-277.DOI: 10.16085/j.issn.1000-6613.2018-1196

• 工业催化 • 上一篇    下一篇

动态现场原位(operando)表征技术在多相催化反应中的应用与进展

孙杨1(),丁豆豆1,林昌1,刘向林1,张超1,田鹏飞1,曹晨熙1,杨子旭1,徐晶1(),韩一帆1,2()   

  1. 1. 华东理工大学化学工程联合国家重点实验室,上海 200237
    2. 郑州大学化工与能源学院,河南 郑州 450001
  • 收稿日期:2018-06-07 修回日期:2018-09-26 出版日期:2019-01-05 发布日期:2019-01-05
  • 通讯作者: 徐晶,韩一帆
  • 作者简介:孙杨(1994—),女,博士研究生,研究方向为高级氧化法污水处理技术。E-mail:<email>296329490@qq.com</email>。|徐晶,教授,博士生导师。E-mail:<email>xujing@ecust.edu.cn</email>|韩一帆,教授,博士生导师,研究方向为工业催化。E-mail:<email>yifanhan@ecust.edu.cn</email>
  • 基金资助:
    国家重点研发计划(2018YFB0604501);国家自然科学基金(21576084,91534127);国家重点研发计划(2018YFB0604501);国家自然科学基金(21576084,91534127)。

Advances in operando techniques for the heterogeneous catalytic reactions

Yang SUN1(),doudou DING1,Chang LIN1,Xianglin LIU1,Chao ZHANG1,Pengfei TIAN1,Chenxi CAO1,Zixu YANG1,Jing XU1(),Yifan HAN1,2()   

  1. 1. State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
    2. School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001, Henan, China
  • Received:2018-06-07 Revised:2018-09-26 Online:2019-01-05 Published:2019-01-05
  • Contact: Jing XU,Yifan HAN

摘要:

动态现场原位(operando)表征是在接近过程工业反应条件下,揭示催化反应机理及工业催化剂结构演变的新兴动态结构解析技术。本文综述了operando表征技术在多相催化反应中的应用及发展趋势,从operando红外、operando拉曼、operando X射线衍射、operando穆斯堡尔谱、operando X射线吸收谱及operando X射线光电子能谱6个方面概述了operando技术的最新进展。此外,还介绍了正在兴起的operando联用技术,该技术综合多种operando技术为一体,能够在反应过程中对催化剂的结构全貌进行深度表征,实现工业催化剂的理性设计,将成为未来多相催化研究的重要手段。然而,目前operando技术的时间分辨率和空间分辨率仍需进一步提升,其巨大潜力依然有待开发。

关键词: 动态现场原位技术, 催化, 原位表征, 催化剂构-效关系, 反应, 表面

Abstract:

Operando characterization is a cutting-edge technique for revealing the catalytic reaction mechanism and the dynamic structure evolution of industrial catalysts under the conditions close to industrial reaction. The development of operando technique and its application on heterogeneous catalysis have been reviewed, and the latest progress on operando infrared spectroscopy (IR), operando Raman, operando X-ray diffraction (XRD), operando M?ssbauer, operando X-ray adsorption spectra (XAS), and operando X-ray photoelectron spectroscopy (XPS) have been summarized. In addition, the coupling of various operando characterizations has also been introduced. Through this technique, the overall structure of the catalyst during reaction process can be characterized more deeply, and thus can realize the rational design of industrial catalysts. Therefore, we believe this coupling technique will become an important and prospective way to study heterogeneous catalysis. Nevertheless, the time and space resolution of current operando technique needs to be improved, and its enormous potential still requires to be further developed.

Key words: operando, catalysis, in-situ, structure-performance relationship, reaction, surface

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