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Updated: Jul 8, 2026
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Synthesis of Zeolites Using the ADOR (Assembly-Disassembly-Organization-Reassembly) Route
Published on: April 3, 2016
A Topotactic Leap: 2D Layers to 3D Large-Pore Zeolite
Aimin Gong1,2, Yuanhao Li3,4, Yifei Yan1,2
1State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University; Changchun 130012, China.
Journal of the American Chemical Society
|July 7, 2026
Summary
Researchers developed a novel large-pore zeolite, JU-68, using a 2D-to-3D topotactic condensation method. This new high-silica zeolite shows superior performance in xylene adsorption and catalytic cracking of heavy oil.
Area of Science:
- Materials Science
- Catalysis
- Nanotechnology
Background:
- Zeolites with large-pore channels, like Y zeolite, are crucial for processing bulky molecules in catalysis and separations.
- Synthesizing new zeolite frameworks beyond established types presents a significant challenge in materials science.
Purpose of the Study:
- To develop a novel 3D large-pore high-silica zeolite using a 2D-to-3D topotactic condensation approach.
- To explore the potential of this new zeolite in applications such as xylene adsorption and heavy oil catalytic cracking.
Main Methods:
- Structure-guided design of a cyclohexyl-enriched organic structure-directing agent to stabilize *bea* building units.
- Synthesis of a 2D large-pore, high-silica precursor zeolite, JU-67.
- Topotactic conversion of JU-67 into a 3D large-pore zeolite, JU-68, via calcination.
Main Results:
- Successful synthesis of a novel 3D large-pore high-silica zeolite, JU-68, with a unique anisotropic 12 × 12 × 12-ring channel system.
- JU-68 demonstrated unique xylene adsorption properties.
- JU-68 exhibited promising performance in the catalytic cracking of heavy oil, yielding higher propylene than industrial USY catalysts.
Conclusions:
- The 2D-to-3D topotactic condensation strategy is effective for creating novel 3D large-pore zeolites.
- The new zeolite JU-68 offers potential for advanced catalytic and separation applications, particularly in petrochemical processing.
