Quasi Metal Organic Framework with highly concentrated Cr2O3 molecular clusters as the efficient catalyst for dehydrofluorination of 1,1,1,3,3-pentafluoropropane

摘要: Abstract Metal-organic frameworks (MOFs) are promising platforms for the application of catalysis with hierarchical porous structures and high surface areas. However, stability is one key challenges reactions at elevated temperatures. In present work, we demonstrate preparation Quasi MIL-101 concentration Cr2O3 molecular clusters (21.7 wt%˜54.2 wt%) via calcination in N2 atmosphere temperatures between 350 °C 500 °C. show activity dehydrofluorination 1,1,1,3,3-pentafluoropropane (HFC-245fa) to 1,3,3,3-tetrafluoropropene (HFO-1234ze). Dehydrofluorination HFC-245fa an efficient route synthesis HFO-1234ze. With temperature 450 °C, reaction rate almost 4 times higher than that commercial no significant deactivation was observed. Therefore, this study provides a competitive strategy catalysts thermal stability.