Carbon Paper

Product Details:

Product Details:

Teflonised Carbon Paper Specifications (5%, 10%, 20%, 25%, 30%)

Type: Carbon Paper (e.g., Toray, SGL, Freudenberg, or similar)

Carbon Content: >95%

Binder: PTFE (Polytetrafluoroethylene), evenly distributed

Physical Properties

Property               Typical Value

Thickness             0.18 mm to 0.38 mm (varies by grade)

Basis Weight       80 – 200 g/m²

Porosity                ~70% (before PTFE treatment)

PTFE Loading      5%, 10%, 20%, 25%, 30% by weight

Surface Density (PTFE)    Proportional to loading; see below

Gas Permeability              Decreases with increasing PTFE content

Hydrophobicity   Increases with PTFE content

Electrical Conductivity     In-plane: ~1000 S/m; decreases slightly with PTFE

Water Contact Angle       >90° for ≥10% PTFE

Effect of PTFE Content

PTFE Content      Main Effect

5%          Minimal hydrophobicity; high gas permeability

10%       Balanced hydrophobicity and permeability; commonly used

20%       Improved water management; slightly lower permeability

25%       Good for liquid-rich environments (e.g., DMFC); more water repellent

30%       Highly hydrophobic; low permeability; used in high-humidity or flood-prone areas

Thermal & Chemical Resistance

Operating Temp: -20°C to 200°C (dry), up to 90°C in PEMFC operation

Chemical Resistance: Excellent against most acids, bases, and solvents

Customization & Coating Options

Optional: MPL (Microporous Layer) coating for enhanced water management

Can be laser-cut, die-cut, or laminated depending on the application

Additional Information:

• Delivery Time: 2days

Product Details:

Carbon Paper has been used for PAFC, PEFC and PEMFC for decades and has proven durability.  Its high mechanical strength, conductivity and gas permiability are suitable for use as a Gas Diffusion Layers in Fuel Cell Applications..

Additional Information:

• Production Capacity: 100
• Delivery Time: 2 to 3 days

Product Details:

Product Details:

Additional Information:

• Delivery Time: one week to 10days

Product Details:

Additional Information:

• Delivery Time: 7 to 10days

Product Details:

Additional Information:

• Production Capacity: 50 nos

Product Details:

1. Fuel Cells (PEMFC, DMFC, etc.)

• Primary Use: As a gas diffusion layer (GDL).
• Function:
  • Distributes gases (hydrogen, oxygen) evenly across the catalyst layer.
  • Conducts electrons between the catalyst and current collectors.
  • Removes water produced during reactions (prevents flooding).
  • Provides mechanical support to the membrane electrode assembly (MEA).

 2. Electrolyzers

• Used similarly as in fuel cells to transport reactants and products while maintaining electrical conductivity and structural integrity.

3. Redox Flow Batteries

• Acts as an electrode or current collector.
• Allows fluid electrolyte to flow through its porous structure while facilitating electron transfer.

 4. Electrochemical CO₂ Reduction / Water Splitting

• Serves as an electrode substrate in lab and industrial electrochemical experiments.
• Its structure enables catalyst deposition and supports high current densities.

 5. Electrocatalysis Research

• Frequently used in laboratories as a support material for catalyst layers during testing and development of new materials.

 6. Other Electrochemical Devices

• Supercapacitors – as a conductive support.
• Sensors – due to its conductivity and chemical stability.
• Battery electrodes – as a support layer in some configurations.

Key Properties That Make It Useful

• High electrical conductivity.
• High porosity and gas permeability.
• Chemically inert and corrosion-resistant.
• Can be PTFE-treated for hydrophobicity.
• Available in different thicknesses and grades.

Additional Information:

• Production Capacity: 10
• Delivery Time: 2 to 4 days

Product Details:

Additional Information:

• Production Capacity: 50 nos
• Delivery Time: 10 days