American DuPont N117 perfluorosulfonic acid membrane

1. Product Introduction

Proton Exchange Membrane Pretreatment

Applications: Suitable for electrolyte membranes in fuel cells, vanadium batteries, electrolyzers, electrodialysis, and electrochemical sensors.

Features:

Excellent thermal stability and high-temperature resistance;

Resistant to electrochemical oxidation, low corrosion, and excellent chemical stability;

Excellent mechanical properties and long life;

High electrical conductivity and high output power.

2. Product Specifications

Brand: DuPont

Model: N-117 or N117 or Nafion 117

Thickness: 183µm

Density: 360g/m²

Conductivity: 0.083S/cm

Exchange Capacity: 0.89meq/g

3. Pretreatment Method (Recommended)

DuPont Tip: N117 membrane can be pretreated before use. The specific method is as follows:

First, treat with 5% hydrogen peroxide at 80°C for 1 hour, then soak in deionized water for half an hour; then boil in 5% dilute sulfuric acid (by weight) at 80°C for 1 hour; and finally soak in deionized water for half an hour.

Alternatively, depending on user preference, it is possible to simply soak in the electrolyte solution before use.

The NRE211 and NRE212 are primarily used in hydrogen and air proton exchange membrane fuel cells, minimizing ohmic losses.

The NR117 and NRE115 are primarily used in direct methanol fuel cells (DMFCs) and water electrolysis applications.

These membranes can all be used in H-type electrolyzers, separating the anode and cathode compartments of proton exchange membrane fuel cells and water electrolyzers. They function as both a diaphragm and a cation-conducting solid electrolyte, selectively transporting cations to the cell junction.

Standard sizes:
Round 3cm (for H-type electrolytic cells)
Square 3*3cm
Square 5*5cm
10*10cm
10*20cm
20*20cm
20*40cm
40*40cm

Customized sizes available