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Updated: Jul 25, 2025

Synthesis of Zeolites Using the ADOR Assembly-Disassembly-Organization-Reassembly Route
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Acidity: A Key Parameter in Zeolite-Templated Carbon Formation

Thibaud Aumond1, Hervé Vezin2, Isabelle Batonneau-Gener1

  • 1Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), Université de Poitiers-UMR 7285 CNRS, 4 rue Michel Brunet, TSA 51106, 86073 Cedex 9, Poitiers, France.

Small (Weinheim an Der Bergstrasse, Germany)
|June 28, 2023
PubMed

Keywords:
acidityelectrical conductivityspin concentrationzeolite-templated carbonzeolites

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The acidic strength of hydrocarbons follows the order: Alkynes > Alkenes > Alkanes. The strength of an acid is commonly expressed in units of pKa — the lower the pKa, the stronger the acid. Among the hydrocarbons, terminal alkynes have lower pKa values and are, therefore, more acidic. For example, the pKa values for ethane, ethene, and acetylene are 51, 44, and 25, respectively, as shown here.
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