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Related Concept Videos

Microbial Fuel Cells01:23

Microbial Fuel Cells

Microbial fuel cells (MFCs) are bioelectrochemical devices that generate electricity by exploiting the metabolic processes of electrogenic bacteria. These systems provide a renewable energy source and serve as an innovative method for treating organic waste, such as wastewater.A typical MFC consists of two chambers: an anoxic (oxygen-free) compartment that houses the bacteria and an oxic (oxygen-rich) compartment that contains oxygen as the terminal electron acceptor. Many MFCs use proton...
Batteries and Fuel Cells03:12

Batteries and Fuel Cells

A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
Potentiometry: Membrane Electrodes01:15

Potentiometry: Membrane Electrodes

Membrane electrodes, also known as p-ion electrodes, use membranes that selectively interact with free analyte ions, generating a potential difference across the membrane. The resulting membrane potential, known as the asymmetry potential, is not zero even when analyte concentrations on both sides of the membrane are equal. The membrane's response is typically not selective to a single analyte but proportional to the concentration of all ions in the sample solution capable of interacting at the...
Ion Exchange01:17

Ion Exchange

Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or basic...

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Related Experiment Video

Updated: Jun 4, 2026

Hydrophobic Salt-modified Nafion for Enzyme Immobilization and Stabilization
11:16

Hydrophobic Salt-modified Nafion for Enzyme Immobilization and Stabilization

Published on: July 11, 2012

Highly ordered mesoporous Nafion membranes for fuel cells.

Jinlin Lu1, Shanfu Lu, San Ping Jiang

  • 1Curtin Centre for Advanced Energy Science and Engineering, Curtin University, Perth, WA 6845, Australia.

Chemical Communications (Cambridge, England)
|February 3, 2011
PubMed
Summary

A novel mesoporous Nafion membrane was created using micelle templating. This material shows excellent water retention and can operate in dry gas environments.

Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Electrochemistry

Background:

  • Nafion membranes are crucial for electrochemical devices but often require humid conditions.
  • Maintaining membrane hydration under dry conditions is a significant challenge.
  • Developing membranes with enhanced water retention is essential for broader applications.

Purpose of the Study:

  • To synthesize a highly ordered mesoporous Nafion membrane.
  • To investigate its water retention capabilities.
  • To demonstrate its functionality under completely dry gas streams.

Main Methods:

  • Micelle templating using self-assembled Pluronic F108 surfactants.
  • Characterization of the mesoporous structure and water retention properties.

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Hydrophobic Salt-modified Nafion for Enzyme Immobilization and Stabilization
11:16

Hydrophobic Salt-modified Nafion for Enzyme Immobilization and Stabilization

Published on: July 11, 2012

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes
07:45

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes

Published on: August 16, 2018

  • Testing membrane performance in dry gas environments.

    • Main Results:

    • Successful synthesis of a highly ordered mesoporous Nafion membrane.
    • Demonstrated remarkable water retention ability.
    • Confirmed capability to operate under completely dry gas streams.

    Conclusions:

    • The developed mesoporous Nafion membrane exhibits superior water retention.
    • This material offers a promising solution for electrochemical devices operating in dry conditions.
    • Micelle templating is an effective strategy for creating advanced Nafion-based membranes.