Qu Jiangshan, Sui Manling, Li Rengui
State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, The Collaborative Innovation Center of Chemistry for Energy Materials (iChEM-2011), Dalian 116023, China.
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China.
iScience. 2023 Jun 8;26(7):107072. doi: 10.1016/j.isci.2023.107072. eCollection 2023 Jul 21.
The process of heterogeneous catalytic reaction under working conditions has long been considered a "black box", which is mainly because of the difficulties in directly characterizing the structural changes of catalysts at the atomic level during catalytic reactions. The development of transmission electron microscopy (TEM) techniques offers opportunities for introducing a realistic chemical reaction environment in TEM, making it possible to uncover the mystery of catalytic reactions. In this article, we present a comprehensive overview of the application of TEM techniques in heterogeneous catalysis, highlighting its utility for observing gas-solid and liquid-solid reactions during thermal catalysis, electrocatalysis, and photocatalysis. TEM has a unique advantage in revealing the complex structural changes of catalysts during chemical reactions. Revealing the real-time dynamic structure during reaction processes is crucial for understanding the intricate relationship between catalyst structure and its catalytic performance. Finally, we present a perspective on the future challenges and opportunities of TEM in heterogeneous catalysis.
长期以来，工作条件下的多相催化反应过程一直被视为一个“黑匣子”，这主要是因为在催化反应过程中难以在原子水平上直接表征催化剂的结构变化。透射电子显微镜（TEM）技术的发展为在TEM中引入真实的化学反应环境提供了机会，从而有可能揭开催化反应的奥秘。在本文中，我们全面概述了TEM技术在多相催化中的应用，强调了其在热催化、电催化和光催化过程中观察气-固和液-固反应的实用性。TEM在揭示化学反应过程中催化剂复杂的结构变化方面具有独特优势。揭示反应过程中的实时动态结构对于理解催化剂结构与其催化性能之间的复杂关系至关重要。最后，我们对TEM在多相催化中的未来挑战和机遇提出了展望。
