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Updated: Jun 8, 2026

Synthesis of Zeolites Using the ADOR (Assembly-Disassembly-Organization-Reassembly) Route
08:26

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Published on: April 3, 2016

Zeolite synthesis: an energetic perspective.

Martijn A Zwijnenburg1, Stefan T Bromley

  • 1Departament de Química Física and Institut de Química Teòrica i Computacional, Universitat de Barcelona, E-08028 Barcelona, Spain. m.a.zwijnenburg@ub.edu

Physical Chemistry Chemical Physics : PCCP
|October 13, 2010
PubMed
Summary
This summary is machine-generated.

Zeolite formation is energetically favored by large alkali metal cations, demonstrating their critical role in directing synthesis. This challenges the notion that zeolites are solely kinetically determined.

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Adsorption Device Based on a Langatate Crystal Microbalance for High Temperature High Pressure Gas Adsorption in Zeolite H-ZSM-5
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Organic Structure-directing Agent-free Synthesis for *BEA-type Zeolite Membrane

Published on: February 22, 2020

Area of Science:

  • Materials Science
  • Computational Chemistry
  • Geochemistry

Background:

  • Aluminosilicate materials, including zeolites, are crucial in catalysis and separation.
  • The synthesis of specific zeolite structures is often complex and not fully understood.
  • The role of cations in directing zeolite framework formation requires further elucidation.

Purpose of the Study:

  • To investigate the energetic favorability of different aluminosilicate structures.
  • To determine the influence of alkali metal cation substitution on structure-type ordering.
  • To establish the role of cation size in directing zeolite synthesis.

Main Methods:

  • Accurate density functional theory (DFT) calculations were employed.
  • Alkali metal cation substitution in archetypal aluminosilicate systems was modeled.
  • Energetic ordering of competing structure-types was analyzed.

Main Results:

  • Substitution of silicon with aluminum and alkali metal cations alters the energetic landscape of aluminosilicates.
  • Porous aluminosilicate structures (zeolites) are energetically favored with large alkali metal cations.
  • Cation size is identified as a critical factor influencing zeolite formation.

Conclusions:

  • Zeolite formation can be an energetically preferred outcome, not solely kinetically controlled.
  • Alkali metal cation size plays a pivotal role in directing the synthesis of specific zeolite structures.
  • These findings provide fundamental insights into zeolite synthesis mechanisms.