Crosslinked Facilitated Transport Membranes Based on Carboxymethylated NFC and Amine-Based Fixed Carriers for Carbon Capture, Utilization, and Storage Applications

Benjamin Dhuiege, Elsa Lasseuguette, Marie-Christine Brochier-Salon, Maria-Chiara Ferrari, Karim Missoum

Research output: Contribution to journalArticlepeer-review

Abstract

Herein, we report the performances of crosslinked facilitated transport membranes based on carboxymethylated nanofibrils of cellulose (cmNFC) and polyvinylamine (PVAm) with the use of 3-(2-Aminoethylamino) propyltrimethoxysilane (AEAPTMS) as second fixed carrier for CO2 selectivity and permeability. The grafting of AEAPTMS on cmNFC was optimized by following
the hydrolysis/condensation kinetics by 29Si Nuclear Magnetic Resonance (NMR) analyses and two different strategies of the process of membrane production were investigated. In optimized conditions, around 25% of the -COOH functions from cmNFC have crosslinked with PVAm. The crosslinked membranes were less sensitive to liquid water and the crystallinity of PVAm was tuned by the conditions of the membrane elaboration. In both processes, CO2 selectivity and permeability were enhanced especially at high water vapor concentration by the use of PVAm and AEAPTMS suggesting the existence of a facilitation effect due to amine-CO2 interaction, while the mechanical integrity of the swollen membranes remained intact. 
Original languageEnglish
Article number414
Number of pages21
JournalApplied Sciences
Volume10
DOIs
Publication statusPublished - 6 Jan 2020

Keywords

  • amine-based fixed site carrier crosslinked facilitated transport membranes
  • carboxymethylated nanofibrils of cellulose
  • carbon capture utilization and storage

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