Insights into CO2 and CH4 Adsorption by Pristine and Aromatic Amine-Modified Periodic Mesoporous Phenylene-Silicas
Source abstract
Abstract
The synthesis and characterization of pristine and amine-functionalized periodic mesoporous phenylene-silicas having different pore sizes are reported. We explore the potential of these materials for CO 2 /CH 4 separation, by studying the adsorption of pure CO 2 and pure CH 4 gases. The aminated periodic mesoporous phenylene-silica with the smallest pore size is the best adsorbent to CO 2, presenting a Henry’s constant of 0.56 mol·kg –1 ·bar –1 at 35 °C. However, the corresponding Henry’s constant for CH 4 is extremely low (0.06 mol·kg –1 ·bar –1 at 35 °C). There is a direct correlation between the % of T 2 SMP silanols species and the values of the Henry’s constants, which may be used to theoretically predict experimental CO 2 Henry’s constants of potential adsorbents.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Metal-Organic Frameworks: Synthesis and Applications · Carbon Dioxide Capture Technologies · Membrane Separation and Gas Transport
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
CICECO, Departament of Materials and Ceramic Engineering, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
Laboratório Associado LSRE-LCM, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal
Department of Chemical and Process Engineering, University of Strathclyde, 75 Montrose Street, Glasgow G1 1XJ, United Kingdom
CICECO, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
Funding
Fundação para a Ciência e a Tecnologia · European Regional Development Fund
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