Design Strategies and Synthesis Methods for Core/Yolk Shell Structured Catalysts
YE Chun1,2, LI Zi-Wei3, LI Min1,3**
1. School of Civil Engineering, Guizhou Institute of Technology, Guiyang 550025, China; 2. Guizhou Bureau of Land and Mineral Resources Reserve, Guiyang 550001, China; 3. School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550003, China
Abstract Nano catalyst usually has high catalytic activity because of the size effect. However, the active components of nano-catalysts are easy to be sintered under high temperature conditions such as preparation process and reaction process, which results in a series of problems such as the degradation of catalytic stability. Designing structured catalyst such as core/yolk shell catalyst is one of the most effective measures to improve the sintering resistance of nano-catalyst. In this paper, firstly, the sintering mechanism of nanocatalysts is introduced. Subsequently, the design strategies of core/yolk shell structured catalyst are discussed. Finally, the preparation methods of core/yolk shell structured catalyst are summarized, providing reference for their application in high temperature reactions.
YE Chun, LI Zi-Wei, LI Min. Design Strategies and Synthesis Methods for Core/Yolk Shell Structured Catalysts[J]. Chinese Journal of Chemical Education, 2023, 44(8): 11-18.
