CT GDL280 is a carbon paper with a Microporous Layer (MPL) and with PTFE. It has a total thickness of 280 um (microns). CT is a great low-cost alternative to conventional carbon paper Gas Diffusion Layer (GDL) materials.

CT GDL280 is available in 20 x 20 cm or 40 x 40 cm sheets at this time.

Advantages of CT Carbon Paper:

Heat transfer during cell operation
Automated QC inspection system
Keep some water on the surface for conductivity
Avoid “flooding”

CT GDL280 has a current lead time of about 3 - 4 weeks to ship.

How to Select a GDL:

The following table provides a guideline for selection of GDLs as a function of the application itself.

Scientific Literature Relevant to This Product:

An article by Duong et al. entitled "Improving the Immobilization of Glucose Oxidase on Carbon Cloth Via a Hybrid Approach of Cross-Linked Chitosan/TPP Matrices with Na Polymers for High-Performance Self-Pumping Enzyme-Based Biofuel Cells" describes the use of CeTech's carbon cloth based GDL for glucose oxidation immobilization and its use in enzymatic bio-fuel cells.

An article by Yang et al. entitled "Carbon cloth based on PAN carbon fiber practicability for PEMFC applications" describes the use of CeTech's carbon cloth based GDL for PEM fuel cell electrode fabrication and also its electrochemical performance in a single cell hardware with current densities exceeding 1600 mA/cm2 values using H2/Air as the reactants.

An article by Hung et al. entitled "Ultra thin gas diffusion layer development for PEMFC" describes the use of CeTech's carbon cloth and carbon paper production methods for synthesis of an ultra-thing GDL and its single cell performance in a PEMFC hardware and exceeding current densities exceeding 1600 mA/cm2 values using H2/Air as the reactants.

An article by Truong et al. entitled "Functionalized Carbon Black Supported Silver (Ag/C) Catalysts in Cathode Electrode for Alkaline Anion Exchange Membrane Fuel Cells" describes the use of CeTech's carbon paper based GDL for AEMFC application and its single cell performance and exceeding current densities exceeding 500 mA/cm2 values using H2/O2 as the reactants.

An article by Truong et al. entitled "Comparison of Carbon Supports in Anion Exchange Membrane Fuel Cells" describes the use of CeTech's carbon paper based GDL for AEMFC application and its single cell performance and exceeding current densities exceeding 1200 mA/cm2 values using H2/O2 as the reactants using different cathode catalysts for improved ORR.

An article by Truong et al. entitled "Effect of Gas Diffusion Layer Thickness on the Performance of Anion Exchange Membrane Fuel Cells" describes the use of CeTech's carbon paper GDLs for AEMFC application and its single cell performance and exceeding current densities exceeding 2000 mA/cm2 values using H2/O2 as the reactants.

An article by Duong et al. entitled "Development of a facile and low-cost chitosan-modified carbon cloth for efficient self-pumping enzymatic biofuel cells" describes the use of CeTech's carbon cloth based GDLs for enzymatic bio-fuel cell applications.

Gas Diffusion Layer Properties
Material Type	Carbon Fiber Paper
Thickness	0.28 mm (280 microns)
Basic Weight (g/m²)	100
Air Permeability (s)	< 200
Electrical Resistivity (through plane)	< 10 mΩcm²
Tensile Strength	MD: 37 N/cm and XD: 33 N/cm
Flexural Modulus (MPa)	MD: 4000 MPa and XD: 1400 MPa
Substrate PTFE Treatment	Yes
Microporous Layer	Yes