Anion Exchange Membranes,Thickness:220𝜇m

INQUIRY

Catalog Number	ACMA00033517
Application	·Alkali recovery ·Electrolytic diaphragm
Color Form	Light yellow
Feature	High strength, alkali resistance
Ionic Form	Cl-
Moisture Content	33%-40%
Notice For Use	·Soak in 5% NaCl solution for 24 hours for pretreatment ·Use under humid conditions to avoid dryness ·Avoid excessive bending, folding and close to sharp objects ·Store in 1-72% sodium chloride solution and avoid light ·Avoid use in solutions containing oils, oxidizing substances (concentrated nitric acid, perchloric acid, etc.) and ionic high molecular weight organic compounds (surfactants, etc.)
pH Range	0-14
Rupture Strength	≥0.9Mpa
Selectivity	90%
Sheet Resistance	4.1𝛺·cm2
Size	We can provide special customized size according to your requirement
Specification	Single Sheet
Thermal Stability	<60°C
Thickness	220𝜇m
Type	Anion

Frontier Research

Anion Exchange Membrane Based Electrolysis for Low-Cost Hydrogen Production

Vincent I, et al. Renewable and Sustainable Energy Reviews, 2018, 81, 1690-1704.

Anion Exchange Membrane (AEM) water electrolysis is a method of hydrogen production using AEM and electricity. The components of an AEM electrolyzer mainly include membrane, ion polymer, electrocatalyst and membrane electrode assembly (MEA). The key distinction between alkaline electrolysis and AEM electrolysis lies in the fact that AEM electrolysis replaces the conventional diaphragm used in alkaline water electrolysis.
Multiple Advantages of AEM Electrolysis
· Transition metal catalysts are used instead of precious metals (platinum group metals; PGM) as catalysts.
· Distilled water or low-concentration alkaline solutions can be used as electrolytes instead of concentrated KOH.
· The membranes containing quaternary ammonium ion exchange groups used in AEM electrolysis are cheaper than Nafion-based membranes.
· Since there are no metal ions in AEM, the interaction between CO2 and AEM is low.
· In addition, there is no corrosive liquid electrolyte in this technology, which has the advantages of no leakage, stable volume, easy operation, and reduced size and weight of the electrolyzer.

Q&A

What is the purpose of anion exchange membranes in fuel cells?

The purpose of anion exchange membranes in fuel cells is to enable the oxidation of complex fuels beyond hydrogen and methanol.

What are some other applications of anion exchange membranes?

Anion exchange membranes also have applications in energy storage, water electrolyzers, and redox flow batteries.

Are anion exchange membranes commonly used in water treatment applications?

Yes, anion exchange membranes have been known for a long time in water treatment applications.

What are the main challenges in the development of anion exchange membranes for fuel cell technology?

The main challenges are the intrinsic stability of the polymers and demonstrating long device lifetime.

What are some approaches to developing stable materials for anion exchange membranes?

Some approaches include using new types of cations that employ delocalization and steric shielding to mitigate nucleophilic attack by hydroxide.

Are fluorinated membranes necessary for solid polymer electrolyte AMFCs?

Fluorinated membranes are not necessarily required for solid polymer electrolyte AMFCs, but their utility is being evaluated.

Are precious metal catalysts required for AMFCs?

Precious metal catalysts are not needed at least at the cathode, and they may not be necessary on the anode with more research on hydrogen oxidation under basic conditions.

What opportunities do AMFCs offer in terms of fuel cell deployment?

AMFCs offer the opportunity for easier oxidation of carbon-containing fuels and the oxidation of carbon-carbon bonds, opening up new opportunities in fuel cell deployment.

What is the standard method for producing anion exchange membranes?

The standard method involves chloromethylation of an aromatic polymer and quaternization of benzylchloride with a tertiary amine.

Have new routes for synthesizing anion exchange membranes been developed?

Yes, new routes such as direct polymerization of cationic monomers or precursors to cationic groups have expanded the number of approaches to new anion exchange membranes.

Technical Information

Anion Exchange Membrane Electrolysis Technology

Anion Exchange Membrane Electrolysis Technology Anion exchange membrane (AEM) electrolysis technology combines the advantages of traditional alkaline electrolysis technology and proton exchange membrane (PEM) electrolysis technology.