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Updated: Dec 29, 2025

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes
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Metallic Liquid Gating Membranes.

Alexander B Tesler1,2,3, Zhizhi Sheng1, Wei Lv4

  • 1College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces , Xiamen University , Xiamen 361005 , China.

ACS Nano
|January 30, 2020
PubMed
Summary

Researchers developed robust metal-based liquid gating membranes (LGMs) using an electrochemical method. These advanced LGMs offer tunable selectivity and fouling resistance, improving water treatment and separation processes.

Keywords:
antifoulingenergy efficiencygas/liquid selectivityliquid gatingmembrane

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Area of Science:

  • Materials Science
  • Chemical Engineering
  • Environmental Science

Background:

  • Mechanical stability limits traditional polymeric liquid gating membranes (LGMs) in harsh conditions.
  • Polymeric membrane deformation under stress leads to failure, restricting LGM applications.

Purpose of the Study:

  • To develop mechanically robust, multifunctional metal-based LGMs.
  • To overcome limitations of polymeric membranes in tunable selectivity and antifouling properties.

Main Methods:

  • Fabrication of metal-based LGMs via a facile electrochemical approach.
  • Tuning membrane porosity, pore size, and surface roughness from micro- to nanometer scale.
  • Experimental confirmation of gating liquid stability and fouling resistance.

Main Results:

  • Achieved controllable gas-liquid selectivity and superior resistance to corrosive conditions and fouling chemicals.
  • Demonstrated significant reduction in transmembrane pressure, leading to lower energy consumption.
  • Metal-based LGMs exhibit enhanced mechanical stability, extending their operating range.

Conclusions:

  • Electrochemical fabrication offers a pathway to mechanically robust, multifunctional LGMs.
  • Metal-based LGMs significantly advance the potential for applications in water treatment, degassing, and multiphase separation.
  • The developed LGMs offer a stable and efficient solution for challenging separation processes.