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July 4, 2026Industrial & Engineering Chemistry Research

A Composite Membrane Enabled by MOF Porous Liquid for Synergistic Enhancement of CO 2 /H 2 Selectivity and Permeance

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Authors

CYC R YangYWYaqi WuRSRui Sun

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Overview

Randomized trial demonstrates improved CO2/H2 selectivity in composite membranes, indicating promising gas separation applications.

Key Points

  • This research aims to enhance gas separation performance through innovative composite membranes incorporating MOF-based porous liquids.
  • The study utilized a series of composite membranes consisting of an MOF-based porous liquid layer, a PIM-1-polyurethane layer, and a polyacrylonitrile substrate.
  • Performance was evaluated with a CO2/H2 (50/50, v/v) gas mixture at room temperature, focusing on permeance and selectivity measures.
  • The ZIF-8@[bmim][Tf2N]/PIM-1-PU membrane achieved a CO2 permeance of 32 GPU and a CO2/H2 selectivity of 14.6.
  • The membrane surpassed the 2008 Robeson upper bound for gas separation efficiency.
  • Stability tests indicate consistent performance after 100 hours at high pressure (500 kPa).

Cite This Study

Yang et al. (2026) studied this question.

synapsesocial.com/papers/6a48a29489561a0c2d78d260https://doi.org/10.1021/acs.iecr.6c01219
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