ArticleMaterials (Basel, Switzerland)2018
CO₂ Capture with Mesoporous Silicas Modified with Amines by Double Functionalization: Assessment of Adsorption/Desorption Cycles.
Article in Materials (Basel, Switzerland), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 46 citations in OpenAlex.
- Enzyme Co-Immobilization on Precipitated Silica for Sustainable Lactobionic Acid Production.Molecules (Basel, Switzerland) · 2026Article
- Amine-Functionalized Lignin for COACS omega · 2025Article
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- Enhanced COMaterials (Basel, Switzerland) · 2019Article
- Effects of Alkali Metal (Li, Na, and K) Incorporation in NH₂⁻MIL125(Ti) on the Performance of CO₂ Adsorption.Materials (Basel, Switzerland) · 2019Article
- Study on Adsorption Mechanism and Failure Characteristics of CO₂ Adsorption by Potassium-Based Adsorbents with Different Supports.Materials (Basel, Switzerland) · 2018Article
- Environmentally Friendly Gelatin/Molecules (Basel, Switzerland) · 2018Article
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
CO₂ adsorption on mesoporous silica modified with amine by double functionalization was studied. Adsorption microcalorimetry was used in order to investigate the influence of increasing the nitrogen surface density on double functionalized materials with respect to the only grafted materials. The distribution of sites and the rate-controlling mechanism of adsorption were evaluated. A Tian Calvet microcalorimeter coupled to a manometric setup was used to evaluate the energy distribution of adsorption sites and to calculate the thermokinetic parameters from the differential enthalpy curves. CO₂ and N₂ adsorption equilibrium isotherms at 50 and 75 °C were measured with a magnetic suspension balance, allowing for the computation of working capacity and selectivity at two temperatures. With these data, an Adsorbent Performance Indicator (API) was calculated and contrasted with other studied materials under the same conditions. The high values of API and selectivity confirmed that double functionalized mesoporous silica is a promising adsorbent for the post combustion process. The adsorption microcalorimetric study suggests a change in active sites distribution as the amine density increases. Maximum thermokinetic parameter suggests that physisorption on pores is the rate-controlling binding mechanism for the double-functionalized material.
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