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Sardo, M., Morais, T., Soares, M., Vieira, R., Ilkaeva, M., Lourenço, M.A.O., et al. (2024) Unravelling the Structure of CO₂ in Silica Adsorbents: An NMR and Computational Perspective. Chemical Communications, 60, 4015-4035.
https://doi.org/10.1039/d3cc05942a

has been cited by the following article:

• TITLE: The Effect of La Doping on the CO2 Adsorption Properties of Silica: A Study of Adsorption Mechanisms Based on Crystal and Microporous Structures

  AUTHORS: Masanori Kobayashi

  KEYWORDS: Silica, Lanthanum (La) Doping, CO2 Adsorption, Physical Adsorption, Chemical Adsorption, Crystal Structure

  JOURNAL NAME: Materials Sciences and Applications, Vol.17 No.8, August 21, 2026

  ABSTRACT: This study investigates the influence of lanthanum (La) doping on the CO2 adsorption behavior of silica-based porous composites synthesized via a chemical solution method. Structural analyses using X-ray diffraction (XRD) and transmission electron microscopy (TEM) confirmed that crystallization of lanthanum oxide within the amorphous silica matrix progresses with increasing La content. CO2 adsorption measurements revealed that samples with lower La concentrations exhibited higher reversible adsorption capacities at low temperatures, indicating that physical adsorption within microporous structures plays a more dominant role than chemical interactions. Enhancing CO2 adsorption performance requires maximizing the effective active surface area through uniform dispersion of fine lanthanum oxide particles. However, the complex involvement of fluid behavior and thermal expansion at elevated temperatures suggests that temperature-dependent structural design is essential for practical applications.