(294a) 2-Dimensional Zeolites: Synthesis, Adsorption, Transport, Catalysis and Stability. | AIChE

(294a) 2-Dimensional Zeolites: Synthesis, Adsorption, Transport, Catalysis and Stability.

Authors 

Tsapatsis, M. - Presenter, Johns Hopkins University
I will review our contributions in 2D-MFI membranes and catalysts starting from our early work on oriented membranes and crystal morphology control (Science 300, 456-460 (2003)), which lead to the introduction of exfoliated 2D-MFI (Science 334, 72-75 (2011)), the discovery of self-pillared 2D-MFI catalysts (Science 336, 1684-1687 (2012)), and the development a new crystal growth mechanism leading to directly synthesized MFI nanosheets (Nature 543, 690-694 (2017)). Recent work (Nature Materials 19, 443-449 (2020)) on commensurate knitting of 1-dimensional MEL (1D-MEL) in 2D-MFI and its implications in transport and mechanical properties and potential applications in isomerization membrane reactors will be discussed. I will also discuss our efforts to quantitatively describe reaction and diffusion in 2D and thicker MFI nanosheets (AIChE Journal 65(3), 1067-1075 (2019)) using classical reaction-diffusion models. I will close with unexpected findings regarding nanosheet coarsening in the presence of superheated steam and its implications for regulating external surface catalysis by 2D-MFI (Angew. Chem. Int. Ed. In Press (2020)).

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