Porous dipeptide crystals as selective CO2 adsorbents: experimental isotherms vs. grand canonical Monte Carlo simulations and MAS NMR spectroscopy

Angiolina Comotti; Alberto Fraccarollo; Silvia Bracco; Mario Beretta; Gaetano Distefano; Maurizio Cossi; Leonardo Marchese; Claudia Riccardi; Piero Sozzani

doi:10.1039/C2CE26502H

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Porous dipeptide crystals as selective CO₂ adsorbents: experimental isotherms vs. grand canonical Monte Carlo simulations and MAS NMR spectroscopy†

Angiolina Comotti,^a Alberto Fraccarollo,^ab Silvia Bracco,^a Mario Beretta,^a Gaetano Distefano,^a Maurizio Cossi,^b Leonardo Marchese,^b Claudia Riccardi^c and Piero Sozzani*^a

Author affiliations

* Corresponding authors

^a Department of Materials Science, University of Milano Bicocca, Via R. Cozzi 53, 20125 Milano, Italy
E-mail: piero.sozzani@mater.unimib.it

^b Dipartimento Scienze e Innovazione Tecnologica, Università Piemonte Orientale, Viale T. Miche 11, 15121 Alessandria, Italy

^c Department of Physics, University of Milano Bicocca, P.za della Scienza 3, 20126 Milano, Italy

Abstract

Molecular crystals of dipeptides containing open channels can selectively absorb CO₂ over N₂ and CH₄, as shown by experimental and simulated isotherms. The efficient CO₂ capture enabled separation from methane and allowed the direct observation by 2D MAS NMR of CO₂ sequestered in the peptide-based biozeolites.

This article is part of the themed collection: Covalent organic frameworks

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Article information

DOI: https://doi.org/10.1039/C2CE26502H
Article type: Communication
Submitted: 14 Sep 2012
Accepted: 24 Oct 2012
First published: 25 Oct 2012

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CrystEngComm, 2013,15, 1503-1507

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Porous dipeptide crystals as selective CO₂ adsorbents: experimental isotherms vs. grand canonical Monte Carlo simulations and MAS NMR spectroscopy

A. Comotti, A. Fraccarollo, S. Bracco, M. Beretta, G. Distefano, M. Cossi, L. Marchese, C. Riccardi and P. Sozzani, CrystEngComm, 2013, 15, 1503 DOI: 10.1039/C2CE26502H

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