High-Performance Gas Diffusion Layer (GDL) | Surface & Bulk PTFE Hydrophobic Enhancement
DiffuCarb® W1S1011T is an advanced carbon Cloth gas diffusion layer (GDL) featuring a microporous layer (MPL) and enhanced hydrophobic treatment.
Through surface (single- or double-sided) and/or bulk (through-thickness) PTFE treatment, the product provides significantly improved water resistance and drainage capacity.
It uses DuPont™ PTFE for excellent stability and durability.
Designed for humid or high water-generation environments, it is a next-generation GDL solution for fuel cells, electrolysis systems, and more.
| Layer | Description | Function |
|---|---|---|
| Carbon Substrate | PAN-based woven carbon fiber fabric | Provides mechanical support and high electrical conductivity |
| Microporous Layer (MPL) | Carbon black + PTFE binder | Improves gas diffusion and stabilizes electrode interface |
| Hydrophobic Enhancement | Surface or bulk PTFE coating | Enhances water repellency, prevents flooding and improves operating stability |
| Type | Description |
|---|---|
| ✅ Single-Sided Treatment | PTFE applied to either carbon side or MPL side to improve drainage on the selected surface |
| ✅ Double-Sided Treatment | Both sides treated with PTFE for balanced hydrophobicity—ideal for harsh/humid environments |
| ✅ Bulk Treatment (Full Volume) | PTFE penetrates through the entire structure to provide deep water resistance and pressure tolerance |
🌊 Water contact angle >120°, demonstrating high hydrophobicity
💧 Efficient water drainage reduces flooding and improves gas access
🔋 Enhanced long-term stability in high humidity and prolonged operation
🛠️ Tunable PTFE loading for targeted water management optimization
🧱 Compatible with various catalyst layers, including dual-affinity or FEP-coated interfaces
| Use Case | Benefit |
|---|---|
| Fuel Cell Cathodes | Long-term water management, mitigates localized flooding |
| PEM Water Electrolyzer Cathodes | Prevents water backflow, ensures gas flow during electrolysis |
| Direct Methanol Fuel Cells (DMFC) | Resists methanol crossover and water intrusion |
| Microbial Fuel Cells – Air Cathode | Maintains air access in wet environments |
| Metal-Air Batteries | Protects GDL from electrolyte infiltration, enhances cycling durability |
| Wet Proofing Type | PTFE Content Range (wt%) |
|---|---|
| Single Side (MPL) | 1%, 5%, 10%, 20%, 30%, 40%, 50% |
| Single Side (Carbon Cloth) | 1%, 5%, 10%, 20%, 30%, 40%, 50% |
| Double Side (MPL + Cloth) | e.g., 0.5%+0.5%, 5%+5%, 10%+10%, etc. |
| Bulk (Through-Thickness) | 2%, 5%, 10%, 15%, 20% |
✔ Recommended for humid or water-generating fuel cells and electrolyzers
✔ Works well with fluorocarbon-coated catalysts or Nafion-wrapped structures
✔ PTFE is standard; FEP is available for soft or melt-processible applications
✔ Evenness of treatment is critical—continuous coating + thermal sintering preferred
Minimum Order: 1 sheet (sample-friendly)
Packaging: Vacuum-sealed or cut-to-size
Lead Time: In-stock items ship promptly
Shipping: Global (DHL, FedEx, SF Express, EMS)
Documentation: Commercial invoice, research use certificate, lab test statement available
Our carbon cloth have been cited in high-impact studies, including:
Chemical Engineering Journal: Enzymatic biofuel cell for glycerol conversion and power generation
Journal of Energy Chemistry: V₂O₅ nanospheres in N-doped fibers for Zn-ion batteries
Nature Communications: Chloride shuttle mechanism in Zn-Cu batteries
Fuel: MoNi₄@graphene electrodes for urea electrooxidation
Polymer: One-pot HPMC-based GPEs for supercapacitors
Journal of Water Process Engineering: EDLC-assisted ammonia recovery via electrodialysis
ACS Nano: Graphdiyne oxide/Au electrodes for non-enzymatic glucose sensing
Journal of Materials Research & Technology: TC4/carbon fiber corrosion in marine conditions
Advanced Functional Materials: Ni/Fe-O-N-C multi-synergistic sites for heavy metal detection
For samples, datasheets, or OEM services:
📱 WeChat / Email / Phone – See our [Purchase Channel] page
🌐 Website – [SCI Materials Hub | www.scimaterials.cn]
👉 Click [Quote & Order] to request a quote or start a project.
📧 Email: contact@scimaterials.cn
📞 WhatsApp & Tel: +86 153-7569-8751
🔗 Place quick orders on our eBay / Amazon stores.
🌐 We ship worldwide via DHL, FedEx, UPS, SF-Express, or other requested carriers.
📦 Bulk quantities with discount available upon request.
💳 Payment methods accepted: Bank Wire Transfer, PayPal, Credit Card (via Taobao), Alipay, WeChat Pay
Unit: USD ' Standard Sizes: 5×5 cm, 10×10 cm, 20×20 cm
| Hydrophobic Enhanced Type | PTFE Loading | 5×5 cm | 10×10 cm | 20×20 cm | Notes |
|---|---|---|---|---|---|
| Single Side Enhanced (MPL Side) | 1% | $8 | $24 | $72 | Enhances catalyst layer interface |
| 5% | $9 | $27 | $84 | ||
| 10% | $11 | $33 | $102 | ||
| 20% | $15 | $45 | $138 | ||
| 30% | $22 | $66 | $198 | ||
| 40% | $30 | $90 | $270 | ||
| 50% | $40 | $120 | $360 | ||
| Single Side Enhanced (Carbon Cloth Side) | 1% | $8 | $24 | $72 | Enhances flow-field side drainage |
| 5% | $9 | $27 | $84 | ||
| 10% | $11 | $33 | $102 | ||
| 20% | $15 | $45 | $138 | ||
| 30% | $22 | $66 | $198 | ||
| 40% | $30 | $90 | $270 | ||
| 50% | $40 | $120 | $360 | ||
| Double Side Enhanced (equally on both sides) | 1% (0.5%+0.5%) | $8 | $24 | $72 | Recommended general-use design |
| 5% (2.5%+2.5%) | $9 | $27 | $84 | ||
| 10% (5%+5%) | $11 | $33 | $102 | ||
| 20% (10%+10%) | $15 | $45 | $138 | ||
| 30% (15%+15%) | $22 | $66 | $198 | ||
| 40% (20%+20%) | $30 | $90 | $270 | ||
| 50% (25%+25%) | $40 | $120 | $360 | ||
| Body Enhanced | 1% | $8 | $24 | $72 | Through-thickness PTFE infusion |
| 5% | $9 | $27 | $84 | ||
| 10% | $11 | $33 | $102 | ||
| 20% | $15 | $45 | $138 | ||
| 30% | $22 | $66 | $198 | ||
| 40% | $30 | $90 | $270 | ||
| 50% | $40 | $120 | $360 |
Available Sizes: 5×5 cm, 10×10 cm, and 20×20 cm in stock. Custom sizes and roll form available on request.
Double-Sided Percentages refer to the total PTFE content, evenly split between both sides (e.g., 20% = 10% + 10%).
Bulk Hydrophobic Treatment infuses PTFE throughout the entire thickness of the carbon fabric, ideal for extreme moisture or pressure environments.
MOQ: 1 piece per type/size (sample friendly).
Lead Time:
In-stock items: ship within 1–3 days
Customized products: ship within 3–5 days
| Type | Treated Surface | Ideal Use Case |
|---|---|---|
| Single Side Enhanced (MPL Side) | Microporous Layer Surface | Enhances water removal from catalyst layer; reduces flooding |
| Single Side Enhanced (Carbon Cloth Side) | Flow field contact side | Improves drainage into gas channels; prevents local flooding |
| Double Side Enhanced (equally on both sides) | Both sides (balanced) | All-around hydrophobicity; most fuel cell scenarios |
| Body Enhanced | Entire thickness (volume) | Harsh environments (e.g., PEMWE, flow batteries, backpressure control) |
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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