Evidence of Intracrystalline Mesostructured Porosity in Zeolites by Advanced Gas Sorption, Electron Tomography and Rotation Electron Diffraction.

Garcia-Martinez J, Xiao C, Cychosz KA, Li K, Wan W, Zou X, Thommes M (2014)

Publication Type: Journal article, Original article

Subtype: other

Publication year: 2014

Journal

ChemCatChem Wiley-VCH Verlag

Publisher: Wiley-VCH Verlag GmbH & Co. KGaA

Book Volume: 6

Pages Range: 3110-3115-3115

Journal Issue: 11

DOI: 10.1002/cctc.201402499

Abstract

The small size of micropores (typically <1 nm) in zeolites causes slow diffusion of reactant and product mols. in and out of the pores and neg. impacts the product selectivity of zeolite based catalysts, for example, fluid catalytic cracking (FCC) catalysts. Size-tailored mesoporosity was introduced into com. zeolite Y crystals by a simple surfactant-templating post-synthetic mesostructuring process. The resulting mesoporous zeolite Y showed significantly improved product selectivity in both lab. testing and refinery trials. Advanced characterization techniques such as electron tomog., three-dimensional rotation electron diffraction, and high resoln. gas adsorption coupled with hysteresis scanning and d. functional theory, unambiguously revealed the intracystalline nature and connectivity of the introduced mesopores. They can be considered as mol. highways that help reactant and product mols. diffuse quickly to and away from the catalytically active sites within the zeolite crystals and, thus, shift the selectivity to favor the prodn. of more of the valuable liq. fuels at reduced yields of coke and unconverted feed. [on SciFinder(R)]

Authors with CRIS profile

Matthias Thommes

Involved external institutions

Stockholm University / Stockholms universitet SE Sweden (SE) Rive Technology, Inc. US United States (USA) (US) Quantachrome Instruments US United States (USA) (US)

How to cite

APA:

Garcia-Martinez, J., Xiao, C., Cychosz, K.A., Li, K., Wan, W., Zou, X., & Thommes, M. (2014). Evidence of Intracrystalline Mesostructured Porosity in Zeolites by Advanced Gas Sorption, Electron Tomography and Rotation Electron Diffraction. ChemCatChem, 6(11), 3110-3115-3115. https://dx.doi.org/10.1002/cctc.201402499

MLA:

Garcia-Martinez, Javier, et al. "Evidence of Intracrystalline Mesostructured Porosity in Zeolites by Advanced Gas Sorption, Electron Tomography and Rotation Electron Diffraction." ChemCatChem 6.11 (2014): 3110-3115-3115.

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