Membrane Electrode Assembly Electrolyzer
Multi-layer Membrane Electrode Assembly MEA Electrolytic Cell
Membrane electrode assembly (MEA) electrolyzer, Proton exchange membrane (PEM), Anion exchange membrane (AEM), Electrocatalysis of CO2RR, HERs and fuel cells
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A membrane electrode assembly (MEA) electrolyzer is a layered advanced electrochemical device designed for high-efficiency electrochemical reactions. MEA electrolyzer features a multilayer structure with a proton exchange membrane (PEM) or anion exchange membrane (AEM) sitting right in the centre of the device, sandwiched between catalyst loaded anode and cathode layers, and then sided by the gas-diffusion layers (GDL).
The PEM or AEM is semi-permeable polymer membrane that physically divides the cell into two separate half-cells. The separation prevents the product gases from mixing while the membrane actively conducts ions to complete the electrical circuit. The anode and cathode are core where the electrochemical reaction taking place. The anode and cathode plates, also known as bipolar plates, flow field plates, or current collectors, are primarily made from materials requiring high electrical conductivity, thermal stability, and corrosion resistance. Common anode and cathode plate materials are titanium, stainless steel, nickel, platinum coated, or gold coated metals.
Ion-exchange membrane
Allows ions to migrate while prevents the gas permeation
Sandwich structure
Membrane sandwiched between Cathode and Anode layers and sided by GDLs
Zero-gap Configuration
Reducing ohmic resistance
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The common applications of MEA electrolyser are fuel cells, water electrolyzers, and carbon dioxide reduction. The following are choices of S-channel materials for the MEA electrolyser. All flow channels are single S-shaped serpentine flow channels, with a width and depth of 1.5 mm.
Choosing the S-Channel (flow field) material guide
- Carbon Dioxide Reduction Reaction (CO2RR): titanium, 316L stainless steel, gold-plated titanium, or stainless steel cathode and titanium anode
- PEM Water Electrolysis: titanium, 316L stainless steel, platinum-plated titanium or platinum-plated stainless steel
- AEM Water Electrolysis: titanium, nickel, or gold-plated nickel.
Note: The intermediate flow plate s-channel material available in stock is titanium (Ta2). Flow channel sizes are available in 10mm*10mm, 20mm*20mm. Please contact us for further information if you want custom made MEA electrolyzer of different channel materials, i.e. nickel, stainless steel, or gold/platinum plated metals.
Key features of the membrane electrode assembly (MEA) electrolytic cell
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A sandwich structure: The MEA consists of a cathode, an anode, and a membrane sandwiched between them, sided by GDLs.
- Ion-exchange membrane: The membrane allows ions to migrate while prevents the gas permeation and products to mix, which is critical for efficiency and safety in applications like fuel cells and water electrolysis. The membrane also separates the anode and cathode, providing electrical insulation between the two sides of the cell.
- Zero-gap design: The zero-gap design minimizes the distance between the membrane and the electrodes to reduce ohmic resistance.
Specifications
| Product code | Channel Material | Chanel Size |
| C2050A1 | Titanium | 10mm*10mm |
| C2050B1 | Titanium | 20mm*20mm |
| FKM Gasket Thickness: |
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|---|---|
| PTFE Gasket Thickness: |
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Membrane Electrode Assembly Electrolyzer Gallery
In the Box
- Titanium Cell
- Anode & cathode Contact leads
- PEEK Gas inlet/ Outlet Screws
- Push-fit Gas locks
- PTFE 0.25 mm thick Gasket
- FKM 0.2 mm thick Gasket
- FKM 0.3 mm thick Gasket
- FKM 0.8 mm thick Gasket
- FKM 1.0 mm thick Gasket
- 1m Potentiostat PTFE Tubing
- PTFE White Tape x1
- Spare gas O-rings
- Spare Flow Feild O-rings
- PTFE Rod 3mm air inlet stopper x4
- Gas Tube cutter
- Spare washes and Screws
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Literature and Reviews
- K. Kamiya et al. (2025), Gaseous CO2 electrolysis: latest advances in electrode and electrolyzer technologies toward abating CO2 emissions, Chem. Sci., 2026, 17, 4363-4374; DOI: 10.1039/D5SC08419A.
- M. Hussain et al. (2025), Boosting electrochemical CO2 reduction to CO by regulating pressure in zero-gap electrolyzer, J. CO2 Until., 100, 103179; DOI: 10.1016/j.jcou.2025.103179.
- Q. Ren et al. (2025), Temperature impact on zero-gap CO2 electrolyzers, Cell Rep. Phys. Sci., 6, (9), 102802; DOI: 10.1016/j.xcrp.2025.102802.
- P. Guan et al. (2026), Strategies for Lowering Hydrogen Permeation in Membranes for Proton Exchange Membrane Water Electrolyzers and Fuel Cells, Adv. Mater., 38 (4), e08400; DOI: 10.1002/adma.202508400.