High and Selective Carbon Dioxide Capture in Nitrogen-Containing Aerogels via Synergistic Effects of Electrostatic In-Plane and Dispersive π-π-Stacking Interactions

Li Yang; Guanjun Chang; Dapeng Wang

doi:10.1021/acsami.7b02077

High and Selective Carbon Dioxide Capture in Nitrogen-Containing Aerogels via Synergistic Effects of Electrostatic In-Plane and Dispersive π-π-Stacking Interactions

ACS Appl Mater Interfaces. 2017 May 10;9(18):15213-15218. doi: 10.1021/acsami.7b02077. Epub 2017 May 1.

Authors

Li Yang¹, Guanjun Chang¹, Dapeng Wang^{2

3}

Affiliations

¹ State Key Laboratory Cultivation Base for Nonmetal Composite and Functional Materials and School of Material Science and Engineering, Southwest University of Science and Technology , Mianyang 621010, P. R. China.
² State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, P. R. China.
³ Department of Chemical and Biological Engineering, University of Colorado-Boulder , Boulder, Colorado 80309, United States.

PMID: 28447780
DOI: 10.1021/acsami.7b02077

Abstract

A new strategy for CO₂ capture is reported based on the synergistic effect of electrostatic in-plane and dispersive π-π-stacking interactions of amide and indole with CO₂. Density functional theory illustrated that the amide group can have an increased ability to capture CO₂ molecules that were just desorbed from an adjacent indole unit. We used this strategy to fabricate a microporous aerogel that exhibited a superior CO₂ capture performance in both dry and wet conditions. The proposed synergistic effect is expected to be a new rationale for the design of CO₂ capture materials.

Keywords: CO2 capture; in-plane and π−π-stacking interactions; nitrogen-containing aerogels; synergistic effect.