When standard carbon cloth isn't enough for your catalyst coating, the W1S1011 is the solution. The integrated Microporous Layer (MPL)—a precision coating of carbon black and PTFE—creates a smooth, highly conductive surface that prevents your expensive catalyst inks from soaking too deeply into the carbon fiber macro-pores. This ensures a higher three-phase boundary area and significantly boosts cell efficiency. With a robust 0.41mm thickness and proven high compressibility, the W1S1011 guarantees reliable, reproducible data for both academic research and commercial stack assembly.
Features
Integrated MPL: One side is coated with a Microporous Layer, providing a flat, optimized surface for direct catalyst application (doctor-blading, spraying, or decal transfer).
Advanced Water Management: Deep PTFE treatment actively drives byproduct water away from the catalyst layer, keeping gas channels open.
Low Catalyst Waste: The MPL acts as a physical barrier, keeping expensive Pt/C catalysts concentrated exactly where the reaction occurs.
High Compressibility: Maintains structural integrity and conductive pathways even under the strict torque requirements of fuel cell hardware.
Standardized Baseline: The "W1S1011" specification is heavily cited in academic literature, making it easy to compare your results with published papers.
Specifications
Parameter
Specification
Model Series
W1S1011
Microporous Layer (MPL)
Coated on one side
Substrate Treatment
Hydrophobic (PTFE treated)
Overall Thickness
0.41 ± 0.02 mm (410 microns)
Basic Weight
~200 g/m²
Air Permeability (Gurley)
< 55 seconds
Through-Plane Resistance
< 13 mΩ·cm²
Tensile Strength
MD: 10 N/cm / XD: 5 N/cm
Standard Dimensions
25*20cm
Quick Answer
The W1S1011 Carbon Cloth is a premium, industry-standard Gas Diffusion Layer (GDL) explicitly engineered with a Microporous Layer (MPL) on one side. Combined with full PTFE hydrophobic treatment, this dual-layer structure drastically reduces catalyst slurry permeation and provides exceptional water management. It is widely recognized as the benchmark substrate for preventing "flooding" in PEM Fuel Cells (PEMFC), Direct Methanol Fuel Cells (DMFC), and high-performance microbial fuel cells.
