Systematic Analysis of the Nitrogen Adsorption–Desorption Isotherms Recorded for a Series of Materials Based on Microporous–Mesoporous Amorphous Aluminosilicates Using Classical Methods

Amorphous aluminosilicates are applied in adsorption and catalysis because they can be designed to possess micro-, meso-, and macropores. In this work, we analyze the nitrogen physisorption isotherms recorded for a series of materials based on amorphous aluminosilicates synthesized by sol–gel via hydrolysis in acidic medium (ACSG), sol–gel with a poly(ethylene glycol) template (P), and sol–gel with gel skeletal reinforcement (GRS). We found that the porosity of the ACGS and GRS types of materials was dominated by mesopores, while that of the P-type materials was dominated by micropores but with a non-negligible fraction of mesopores. We catalogued the isotherms produced by the latter type of materials as type…

• MD
  Ministério da Ciência, Tecnologia e Inovação

  Award: 110284769842
• UI
  Universidad Industrial de Santander

  Award: 5219040
• AN
  Agencia Nacional de Hidrocarburos

  Award: 110284769842