1. Introduction
Nafion Membrane is used to separate the anode and cathode compartment of Proton Exchange Membrane fuel cells and water electrolyzers. The thickness of this particular cation exchange membrane, Nafion 115 makes it suitable for Direct Methanol Fuel Cells (DMFC) and Electrolysis applications. Nafion 115 is 127 micrometers thick.
Chemours (formerly DuPont) Nafion 115 membranes are non-reinforced films based on chemically stabilized perfluorosulfonic acid/PTFE copolymer in the acid (H+) form. The physical properties remain the same for the chemically stabilized membranes, which exhibit substantially lower fluoride ion release compared to the non-stabilized polymer – a sign of improved chemical durability.
Nafion PFSA membranes are widely used for Proton Exchange Membrane (PEM) fuel cells and water electrolyzers. The membrane performs as a separator and solid electrolyte in a variety of electrochemical cells that require the membrane to selectively transport cations across the cell junction. The polymer is chemically resistant and durable.
Nafion perfluorinated membrane is a composite membrane, which is utilized as an ion-exchange membrane for the fabrication of fuel cells. It can also be used as an electrolytic separator for the preparation of small scale supercapacitors.
Nafion is a perfluorinated ion-exchange membrane which has a wide variety of commercial uses. The acidic (hydrogen ion) form and derivatives are solid, superacid catalysts useful in a wide variety of synthetic applications.
2. Welcome to cite our materials in your papers
Nafion N115 was obtained from SCI Materials Hub.
3. Nafion membrane & dispersion series in SCI Materials Hub
Nafion membranes | ||||
| Properties | Thickness | Basis weight (g/m2) | Specific gravity | Water uptake (%) |
| Nafion 115 | 125 μm | 250 | 1.98 | 38 |
| Nafion 117 | 183 μm | 360 | 1.98 | 38 |
| Nafion 211 | 25.4 μm | 50 | 1.97 | 50 ± 5 |
| Nafion 212 | 50.8 μm | 100 | 1.97 | 50 ± 5 |
| Nafion 324 | 0.28 mm | -- | -- | -- |
| Nafion 424 | 0.38 mm | -- | -- | -- |
| Nafion 438 | 0.305 mm | -- | -- | -- |
Nafion dispersions | ||||
| Properties | Base | Equivalent Weight | Water Content (wt. %) | VOC Content (wt. %) |
| Nafion D520 | Alcohol | 1000 | 45 ± 3 | 50 ± 3 |
| Nafion D521 | Alcohol | 1100 | 45 ± 3 | 50 ± 3 |
Download:
Nafion 115, 117, and 1110 Membrane Properties Sheet.pdf
Handling and Storage of Chemours Nafion Perfluorinated Membranes.pdf
Nafion Membrane Safety Handling Technical Information Bulletin T-01.pdf
Nafion Membrane Technical Bulletin No. 93-01 for DRY H+ Membrane Pretreatment.pdf
| Membrane Properties | |
| Thickness | 127 micrometers (μm) |
| Basic Weight (g/m2) | 250 |
| Tensile Strength - max. (MPa) | 43 (6.2) in MD, 32 (4.6) in TD - Method: ASTM D 882 |
| Non-Std Modulus (MPa) | 249 (36) - Method: ASTM D 882 |
| Elongation to Break (%) | 225 (MD), 310 (TD) - Method: ASTM D 882 |
| Tear Resistance - Initial (g/mm) | 6000 (MD, TD) - Method: ASTM D 1004 |
| Tear Resistance - Propagating (g/mm) | >100 (MD), >150 (TD) - Method: ASTM D 1922 |
| Specific Gravity (23 °C, 50% RH) | 1.98 |
| Available Acid Capacity (meq/g) | 0.90 min |
| Total Acid Capacity (meq/g) | 0.95 to 1.01 |
| Conductivity (S/cm) | 0.10 min |
| Membrane Hydrolytic Properties | |
| Water content (% water) | 5.0 - Method: ASTM D 570 |
| Water uptake (% water) | 38.0 - Method: ASTM D 570 |
| Linear Expansion % increase - 50% RH, 23°C to water soaked 23°C | 10.0 - Method: ASTM D 756 |
| Linear Expansion % increase - 50% RH, 23°C to water soaked 100°C | 15.0 - Method: ASTM D 756 |
Located below is a very helpful Nafion Membrane Comparison Table listing the properties of the main Nafion types that Dupont offers in an easy to read format. This table will enable you to save countless hours of gathering piles of membrane property sheets and shuffling them around on your desk to compare them!
If you have any questions or you would like to purchase a Nafion membrane that is not currently in our online store, email us at contact@scimaterials.cn
| Membrane Type | Nafion HP | Nafion 211 | Nafion XL | Nafion 212 | Nafion 115 | Nafion 117 | Nafion 1110 |
|---|---|---|---|---|---|---|---|
| Thickness, Micrometer | 22 | 25.4 | 27.5 | 50.8 | 127 | 183 | 254 |
| Basis Weight, g/m2 | 43.5 | 50 | 55 | 100 | 250 | 360 | 500 |
| Tensile Modulus, MPa (kpsi)** | 249 (36) | 249 (36) | 249 (36) | ||||
| Tensile Strength, maximum MD, MPa (kpsi)** | 38 (5.5) | 23 (3.3) | 45 (6.5) | 32 (4.6) | 43 (6.2) | 43 (6.2) | 43 (6.2) |
| Tensile Strength, maximum TD, MPa (kpsi)** | 41 (5.9) | 28 (4.1) | 40 (5.8) | 32 (4.6) | 32 (4.6) | 32 (4.6) | 32 (4.6) |
| Elongation at Break MD, %** | 182 | 252 | 200 | 343 | 225 | 225 | 225 |
| Elongation at Break TD, %** | 89 | 311 | 185 | 352 | 310 | 310 | 310 |
| Tear Resistance - Initial MD, g/mm** | 6000 | 6000 | 6000 | ||||
| Tear Resistance - Initial TD, g/mm** | 6000 | 6000 | 6000 | ||||
| Tear Resistance - Propagating MD, g/mm** | >100 | >100 | >100 | ||||
| Tear Resistance - Propagating TD, g/mm** | >150 | >150 | >150 | ||||
| Specific Gravity | 1.97 | 1.97 | 1.98 | 1.98 | 1.98 | ||
| Conductivity In-Plane, mS/cm | 72 | 72 | |||||
| Conductivity Through-Plane, mS/cm | 50.5 | 50.5 | |||||
| Available Acid Capacity, meq/g | 0.92 min | 0.92 min | 0.90 min | 0.90 min | 0.90 min | ||
| Total Acid Capacity, meq/g | 0.95 to 1.01 | 0.95 to 1.01 | 0.95 to 1.01 | 0.95 to 1.01 | 0.95 to 1.01 | ||
| Water Content, % Water | 5.0 ± 3.0% | 5.0 ± 3.0% | 5.0 ± 3.0% | 5.0 ± 3.0% | 5.0% | 5.0% | 5.0% |
| Water Uptake, % Water | 50.0±5.0% | 50.0±5.0% | 50.0±5.0% | 50.0±5.0% | 38% | 38% | 38% |
| Thickness % Increase (from 50% RH, 23 °C to water soaked, 23 °C) | 10% | 10% | 10% | ||||
| Thickness % Increase (from 50% RH, 23 °C to water soaked, 100 °C) | 14% | 14% | 14% | ||||
| Linear Expansion, % Increase (from 50% RH, 23 °C to water soaked, 23 °C) | 1% to 5% | 10% | 1% to 5% | 10% | 10% | 10% | 10% |
| Linear Expansion, % Increase (from 50% RH, 23 °C to water soaked, 100 °C) | 3% to 11% | 15% | 3% to 11% | 15% | 15% | 15% | 15% |
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Nafion N115 | |
Product Code | 171000 |
| Description | Nafion N115 |
| Retail Price (USD$) | $19 (5cm*5cm，Item#：171000-0505) $39 (10cm*10cm，Item#：171000-1010) $78 (15cm*15cm，Item#：171000-1515) $85 (15cm*17cm，Item#：171000-1517) $99 (20cm*20cm，Item#：171000-2020) $105 (20cm*22cm，Item#：171000-2022) $199 (30cm*30cm，Item#：171000-3030) $209 (30cm*32cm，Item#：171000-3032) $1345 (62cm*100cm，Item#：171000-62100) Request for bulk quantity |
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Partial references citing our materials (from Google Scholar)
Carbon Dioxide Reduction
1. ACS Nano Strain Relaxation in Metal Alloy Catalysts Steers the Product Selectivity of Electrocatalytic CO2 Reduction
The bipolar membrane (Fumasep FBM) in this paper was purchased from SCI Materials Hub, which was used in rechargeable Zn-CO2 battery tests. The authors reported a strain relaxation strategy to determine lattice strains in bimetal MNi alloys (M = Pd, Ag, and Au) and realized an outstanding CO2-to-CO Faradaic efficiency of 96.6% with outstanding activity and durability toward a Zn-CO2 battery.
2. Front. Chem. Boosting Electrochemical Carbon Dioxide Reduction on Atomically Dispersed Nickel Catalyst
In this paper, Vulcan XC-72R was purchased from SCI Materials Hub. Vulcan XC 72R carbon is the most common catalyst support used in the anode and cathode electrodes of Polymer Electrolyte Membrane Fuel Cells (PEMFC), Direct Methanol Fuel Cells (DMFC), Alkaline Fuel Cells (AFC), Microbial Fuel Cells (MFC), Phosphoric Acid Fuel Cells (PAFC), and many more!
3. Adv. Mater. Partially Nitrided Ni Nanoclusters Achieve Energy-Efficient Electrocatalytic CO2 Reduction to CO at Ultralow Overpotential
An AEM membrane (Sustainion X37-50 Grade RT, purchased from SCI Materials Hub) was activated in 1 M KOH for 24 h, washed with ultra-purity water prior to use.
4. Adv. Funct. Mater. Nanoconfined Molecular Catalysts in Integrated Gas Diffusion Electrodes for High-Current-Density CO2 Electroreduction
In this paper (Supporting Information), an anion exchanged membrane (Fumasep FAB-PK-130 obtained from SCI Materials Hub (www.scimaterials.cn)) was used to separate the catholyte and anolyte chambers.
SCI Materials Hub: we also recommend our Fumasep FAB-PK-75 for the use in a flow cell.
5. Appl. Catal. B Efficient utilization of nickel single atoms for CO2 electroreduction by constructing 3D interconnected nitrogen-doped carbon tube network
In this paper, the Nafion 117 membrane was obtained from SCI Materials Hub.
In this paper, Proton exchange membrane (Nafion 117), Nafion D520, and Toray 060 carbon paper were purchased from SCI Materials Hub.
7. National Science Review Confinement of ionomer for electrocatalytic CO2 reduction reaction via efficient mass transfer pathways
An anion exchange membrane (PiperION-A15-HCO3) was obtained from SCI Materials Hub.
8. Catalysis Communications Facilitating CO2 electroreduction to C2H4 through facile regulating {100} & {111} grain boundary of Cu2O
Carbon paper (TGPH060), membrane solution (Nafion D520), and ionic membrane (Nafion N117) were obtained from Wuhu Eryi Material Technology Co., Ltd (a company under SCI Materials Hub).
Batteries
1. J. Mater. Chem. A Blocking polysulfides with a Janus Fe3C/N-CNF@RGO electrode via physiochemical confinement and catalytic conversion for high-performance lithium–sulfur batteries
Graphene oxide (GO) in this paper was obtained from SCI Materials Hub. The authors introduced a Janus Fe3C/N-CNF@RGO electrode consisting of 1D Fe3C decorated N-doped carbon nanofibers (Fe3C/N-CNFs) side and 2D reduced graphene oxide (RGO) side as the free-standing carrier of Li2S6 catholyte to improve the overall electrochemical performance of Li-S batteries.
This paper used more than 10 kinds of materials from SCI Materials Hub and the authors gave detailed properity comparsion.
The commercial IEMs of Fumasep FAB-PK-130 and Nafion N117 were obtained from SCI Materials Hub.
Gas diffusion layers of GDL340 (CeTech) and SGL39BC (Sigracet) and Nafion dispersion (Nafion D520) were obtained from SCI Materials Hub.
Zn foil (100 mm thickness) and Zn powder were obtained from the SCI Materials Hub.
Commercial 20% Pt/C, 40% Pt/C and IrO2 catalysts were also obtained from SCI Materials Hub.
3. Journal of Energy Chemistry Vanadium oxide nanospheres encapsulated in N-doped carbon nanofibers with morphology and defect dual-engineering toward advanced aqueous zinc-ion batteries
In this paper, carbon cloth (W0S1011) was obtained from SCI Materials Hub. The flexible carbon cloth matrix guaranteed the stabilization of the electrode and improved the conductivity of the cathode.
4. Energy Storage Materials Defect-abundant commercializable 3D carbon papers for fabricating composite Li anode with high loading and long life
The 3D carbon paper (TGPH060 raw paper) were purchased from SCI Materials Hub.
5. Nanomaterials A Stable Rechargeable Aqueous Zn–Air Battery Enabled by Heterogeneous MoS2 Cathode Catalysts
Nafion D520 (5 wt%), and carbon paper (GDL340) were received from SCI-Materials-Hub.
Carbon cloth (W0S1011) and other electrochemical consumables required for air cathode were provided by SCI Materials Hub.
Oxygen Reduction Reaction
1. J. Chem. Eng. Superior Efficiency Hydrogen Peroxide Production in Acidic Media through Epoxy Group Adjacent to Co-O/C Active Centers on Carbon Black
In this paper, Vulcan XC 72 carbon black, ion membrane (Nafion N115, 127 μL), Nafion solution (D520, 5 wt%), and carbon paper (AvCarb GDS 2230 and Spectracarb 2050A-1050) were purchased from SCI Materials Hub.
2. Journal of Colloid and Interface Science Gaining insight into the impact of electronic property and interface electrostatic field on ORR kinetics in alloy engineering via theoretical prognostication and experimental validation
The 20 wt% Pt3M (M = Cr, Co, Cu, Pd, Sn, and Ir) were purchased from SCI Materials Hub. This work places emphasis on the kinetics of the ORR concerning Pt3M (M = Cr, Co, Cu, Pd, Sn, and Ir) catalysts, and integrates theoretical prognostication and experimental validation to illuminate the fundamental principles of alloy engineering.
Water Electrolysis
1. International Journal of Hydrogen Energy Gold as an efficient hydrogen isotope separation catalyst in proton exchange membrane water electrolysis
The cathodic catalysts of Pt/C (20 wt%, 2–3 nm) and Au/C (20 wt%, 4–5 nm) were purchased from SCI Materials Hub.
2. Small Science Silver Compositing Boosts Water Electrolysis Activity and Durability of RuO2 in a Proton-Exchange-Membrane Water Electrolyzer
Two fiber felts (0.35 mm thickness, SCI Materials Hub) were used as the porous transport layers at both the cathode and the anode.
3. Advanced Functional Materials Hierarchical Crystalline/Amorphous Heterostructure MoNi/NiMoOx for Electrochemical Hydrogen Evolution with Industry-Level Activity and Stability
Anion-exchange membrane (FAA-3-PK-130) was obtained from SCI Materials Hub website.
Fuel Cells
1. Polymer Sub-two-micron ultrathin proton exchange membrane with reinforced mechanical strength
Gas diffusion electrode (60% Pt/C, Carbon paper) was purchased from SCI Materials Hub.
Characterization
1. Chemical Engineering Journal Electrochemical reconstitution of Prussian blue analogue for coupling furfural electro-oxidation with photo-assisted hydrogen evolution reaction
An Au nanoparticle film was deposited on the total reflecting plane of a single reflection ATR crystal (SCI Materials Hub, Wuhu, China) via sputter coater.
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