Our Wet Proofed Carbon Paper with an 80wt% Teflon (PTFE) coating, also known as Teflon impregnated carbon paper skeleton gas diffusion layer, is designed for superior hydrophobicity and durability, tailored for applications demanding effective moisture control, gas permeability, and robust performance. This carbon paper serves as an advanced gas diffusion layer (GDL) in electrochemical applications such as CO₂ reduction reaction (CO₂RR), electrolysis, batteries, and fuel cells.

Key Features

1. High Teflon Content (80wt%)

   • The carbon paper is treated with 80wt% Teflon, providing enhanced hydrophobic properties. This prevents water retention and supports high gas permeability, reducing the risk of flooding and improving the stability and efficiency of the system.

2. Versatile Thickness Options

   • Available in a wide range of thicknesses: 0.1, 0.2, 0.3, 0.4, 0.5, 0.8, and 1.1 mm. This variety allows users to select the ideal thickness for specific applications, balancing gas diffusion requirements with structural support.

3. Enhanced Hydrophobicity for Improved Water Management

   • The high Teflon content increases water-repellent properties, minimizing water saturation and allowing for efficient drainage in environments with high humidity or liquid water production.

4. High Porosity for Optimal Gas Transport

   • The paper’s high porosity (~70%-80%) is preserved even with the Teflon coating, ensuring efficient gas flow and contact with the catalyst layer, supporting reaction efficiency in both CO₂RR and fuel cells.

5. High Electrical Conductivity and Mechanical Durability

   • Despite the Teflon coating, the carbon paper maintains excellent electrical conductivity, essential for consistent performance in high-current applications. The Teflon coating also adds mechanical strength, ensuring durability in demanding environments.

Applications

• CO₂ Reduction Reaction (CO₂RR): Provides stable gas flow, supporting efficient CO₂ electroreduction and preventing flooding issues.

• Electrolysis: Suitable as a GDL in both oxygen and hydrogen evolution applications, with improved water management and longevity under operational conditions.

• Batteries: Functions as a gas diffusion layer in flow batteries and other electrochemical systems that benefit from effective moisture control.

• Fuel Cells: Acts as a high-performance GDL for PEM fuel cells, supporting continuous gas diffusion, minimizing flooding, and enhancing overall fuel cell durability.

Technical Specifications

• Teflon Coating: 80 wt%
• Thickness Options: 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.8 mm, 1.1 mm
• Porosity: Approximately 70%-80%
• Standard Dimensions: 5x5 cm, 10x10 cm, 20x20 cm (custom sizes available upon request)

Advantages

The high Teflon content and available thickness options make this carbon paper ideal for use in CO₂RR, fuel cells, electrolysis, and battery systems where moisture resistance, gas permeability, and structural integrity are critical. Its versatility across applications provides enhanced performance, contributing to reliable and efficient device operation over extended periods.

For orders and custom requirements, please contact us at contact@scimaterials.cn. Our team is ready to support your specific application needs with tailored options.