Melamine‐Doped Covalent Organic Framework Membranes for Enhanced Hydrogen Purification
- 21 September 2021
- journal article
- research article
- Published by Wiley in Chemistry – An Asian Journal
- Vol. 16 (22), 3624-3629
- https://doi.org/10.1002/asia.202100909
Abstract
Covalent organic frameworks (COFs) are promising materials for membrane separation thanks to their adjustable topological structures and surface properties of nanopores. Herein, a melamine (Me) doped COF membrane was fabricated by chemically doping the melamine monomer into TpPa COF, which is formed by the condensation reaction between the 1,3,5-triformylphloroglucinol (Tp) and p-phenylenediamine (Pa) monomers via interfacial polymerization . The introduction of melamine monomer allows altering both the pore structure and pore surface of the TpPa COF membrane, leading to enhanced hydrogen purification performance. Specifically, the separation factor of H 2 /CO 2 gas mixture by using the melamine doped TpPa COF (TpPaMe COF) membrane reaches 12.7, with hydrogen permeance of 727 GPU, in sharp contrast to the relatively low separation factor and gas permeance of 7.5 and 618 GPU of the undoped TpPa membrane. Besides, the TpPaMe COF membrane shows good running stability, with H 2 /CO 2 separation performance well surpasses the Robeson 2008 upper bound.Keywords
Funding Information
- National Natural Science Foundation of China (21922504, 52073069, 92056204, 21890381, 21721002)
This publication has 24 references indexed in Scilit:
- A Robust Zeolitic Imidazolate Framework Membrane with High H2/CO2 Separation Performance under Hydrothermal ConditionsACS Applied Materials & Interfaces, 2019
- Covalent Organic Frameworks: Structures, Synthesis, and ApplicationsAdvanced Functional Materials, 2018
- Interface-Assisted Synthesis of 2D Materials: Trend and ChallengesChemical Reviews, 2018
- Microporous ZIF-7 membranes prepared by in-situ growth method for hydrogen separationInternational Journal of Hydrogen Energy, 2015
- ZIF-8 continuous membrane on porous polysulfone for hydrogen separationJournal of Membrane Science, 2014
- Preparation of novel metal-carboxylate system MOF membrane for gas separationSeparation and Purification Technology, 2013
- A hybrid zeolitic imidazolate framework membrane by mixed-linker synthesis for efficient CO2captureChemical Communications, 2012
- Construction of Crystalline 2D Covalent Organic Frameworks with Remarkable Chemical (Acid/Base) Stability via a Combined Reversible and Irreversible RouteJournal of the American Chemical Society, 2012
- Hydrogen Selective NH2‐MIL‐53(Al) MOF Membranes with High PermeabilityAdvanced Functional Materials, 2012
- The upper bound revisitedJournal of Membrane Science, 2008