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Constructing Hierarchical Porous Zeolites via Kinetic Regulation. | LitMetric

Constructing Hierarchical Porous Zeolites via Kinetic Regulation.

J Am Chem Soc

Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States.

Published: September 2015

AI Article Synopsis

  • - Zeolites are versatile crystalline materials with tiny pores, used in various industries like catalysis and medicine, but they face challenges due to limited mass transfer through their small micropores.
  • - Researchers have tried combining larger mesopores with zeolites to improve their efficiency through various methods.
  • - This study introduces a novel method for creating zeolites with both micropores and larger hierarchical pores, relying on a unique growth process influenced by aluminum-zoning, instead of traditional templating techniques.

Article Abstract

Zeolites are crystalline inorganic solids with microporous structures, having widespread applications in the fields of catalysis, separation, adsorption, microelectronics, and medical diagnosis. A major drawback of zeolites is the mass transfer limitation due to the small size of the micropores (less than 1 nm). Numerous efforts have been dedicated to integrating mesopores with the microporous zeolite structures by using templating and/or destructive approaches. Here we provide a new strategy for hierarchical pore size zeolite synthesis, without using supramolecular or hard templates. The branching epitaxial growth behavior, as a result of aluminum-zoning, contributes to the formation of the hierarchical porous zeolite structures.

Download full-text PDF

Source
http://dx.doi.org/10.1021/jacs.5b06791DOI Listing

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