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The effect of grafted amine group on the adsorption of CO2 in MCM-41: A molecular simulation

Paper ID Volume ID Publish Year Pages File Format Full-Text
54973 47034 2012 7 PDF Available
Title
The effect of grafted amine group on the adsorption of CO2 in MCM-41: A molecular simulation
Abstract

Amine grafted mesoporous materials such as MCM-41, etc. have been approved as a type of good candidates for CO2 capture by many experimental results. However, the theoretical or molecular simulation studies about the effects of the grafted amine groups on the CO2 adsorption are far from sufficient to deeply understand the adsorption mechanism. The difficulty lies in the fact that it is hard to formulate a precise interaction between CO2 and amine group. In this work, CO2 adsorption in the amine grafted mesoporous material was simulated by grand canonical Monte Carlo (GCMC) method. Enhanced physical interaction was used to describe the weak chemical interaction between CO2 and amine group. The effects of the density of grafted amine groups on properties of the mesoporous materials, the adsorption quantity, as well as the adsorption selectivity were investigated. The simulation results were quite comparable to the real experimental ones.

Graphical abstract.Figure optionsDownload full-size imageDownload high-quality image (183 K)Download as PowerPoint slideHighlights► Enhanced physical interaction was used to describe the weak chemical interaction. ► Interaction energy by DFT computation was used as the force field parameter calibration. ► The effect of grafted amine group on the adsorption of CO2 was illustrated.

Keywords
CO2 adsorption; GCMC simulation; MCM-41; Grafted amine group; Weak chemical interaction
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The effect of grafted amine group on the adsorption of CO2 in MCM-41: A molecular simulation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 194, Issue 1, 30 October 2012, Pages 53–59
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us