Related Experiment Video
Updated: Sep 18, 2025
Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes
Published on: August 16, 2018
A Fiberglass-Cloth-Reinforced Perfluorosulfonic Acid Membrane.
Zhutao Zhang1, Yiru Dou1, Wen Zhang1,2
1State Key Laboratory of Chemical Engineering and Low-Carbon Technology, Tianjin Key Laboratory of Membrane Science and Desalination Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
Researchers developed a fiberglass-reinforced perfluorosulfonic acid (PFSA) membrane with significantly improved mechanical strength and reduced swelling. This novel membrane offers lower area-specific resistance, enhancing performance for various applications.
Area of Science:
- Materials Science
- Polymer Chemistry
- Electrochemistry
Background:
- Perfluorosulfonic acid (PFSA) membranes are crucial for applications requiring high ionic conductivity and chemical stability.
- Existing PFSA membranes often face limitations in mechanical strength, swelling, area-specific resistance, and cost.
Purpose of the Study:
- To fabricate a mechanically robust and high-performance PFSA membrane.
- To address the limitations of conventional PFSA membranes through reinforcement.
Main Methods:
- Fabrication of a fiberglass-cloth-reinforced PFSA membrane.
- Utilized a simple solution cast method for membrane preparation.
- Characterization of mechanical strength, swelling, and area-specific resistance.
Main Results:
- The reinforced membrane exhibited a breaking strength of 81 MPa, significantly exceeding non-reinforced counterparts and commercial Nafion 117 (N117).
- Area swelling ratio was reduced to 3% at 100 °C in water, a substantial improvement over N117.
- Achieved an area-specific resistance of 0.069 Ω·cm², 58% lower than N117, despite minor ionic conduction hindrance.
Conclusions:
- Fiberglass reinforcement offers a viable strategy to enhance PFSA membrane properties.
- The developed membrane demonstrates superior mechanical integrity, reduced swelling, and improved ionic conductivity.
- Presents a promising pathway for high-performance, cost-effective ionic conductive membranes.
