Metal-Organic Material Polymer Coatings for Enhanced Gas Sorption Performance and Hydrolytic Stability under Humid Conditions

David G. Madden, Ahmad B. Albadarin, Daniel O'Nolan, Patrick Cronin, John J. Perry, Samuel Solomon, Teresa Curtin, Majeda Khraisheh, Michael J. Zaworotko, Gavin M. Walker

Research output: Contribution to journalArticlepeer-review

Abstract

Physisorbent metal-organic materials (MOMs) have shown benchmark performance for highly selective CO2 capture from bulk and trace gas mixtures. However, gas stream moisture can be detrimental to both adsorbent performance and hydrolytic stability. One of the most effective methods to solve this issue is to transform the adsorbent surface from hydrophilic to hydrophobic. Herein, we present a facile approach for coating MOMs with organic polymers to afford improved hydrophobicity and hydrolytic stability under humid conditions. The impact of gas stream moisture on CO2 capture for the composite materials was found to be negligible under both bulk and trace CO2 capture conditions with significant improvements in regeneration times and energy requirements.

Original languageEnglish
Pages (from-to)33759-33764
Number of pages6
JournalACS Applied Materials and Interfaces
Volume12
Issue number30
DOIs
Publication statusPublished - 29 Jul 2020

Keywords

  • adsorption
  • carbon dioxide
  • polymer coating
  • separation
  • ultramicroporous materials

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