Titanium Fiber Paper φ10*1mm High Temperature Resistant Substrate is engineered as a high-porosity, sintered metal structure, delivering exceptional performance in demanding thermal and electrochemical environments. Its precisely controlled fiber matrix, featuring 12-micron diameter titanium fibers, ensures superior structural integrity and pore uniformity within the compact φ10*1mm form factor. This precise engineering creates a porosity range of 70% to 80%, which is critical for effective gas diffusion and electrolyte permeation. This makes it particularly suitable for use as a Gas Diffusion Layer (GDL) or Porous Transport Layer (PTL) in PEM electrolyzers and fuel cells, where it facilitates efficient reactant distribution and serves as a highly conductive current collector. The inherent corrosion resistance of the commercially pure titanium grades (TA1) provides long-term durability against aggressive media.

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For specialized applications requiring maximum operational lifetime, Titanium Fiber Paper φ10*1mm High Temperature Resistant Substrate can be further optimized with advanced surface modifications. The application of a platinum or gold coating via platinization is a recommended solution to prevent the formation of an electrically insulating titanium oxide (TiO₂) layer on the high-surface-area 12-micron fibers, which can cause a significant increase in interfacial contact resistance, especially under high-pressure oxygen conditions. This proactive stabilization of the surface chemistry ensures consistent electrochemical performance and enhanced reliability, making it an ideal substrate for high-temperature operations and a robust foundation for catalytic layers in advanced electrochemical systems. The combination of the specific φ10*1mm dimensions and fine 12-micron fiber structure creates an optimal platform for surface treatments that enhance long-term performance in demanding applications.

Product Specifications

Material: GR1 Titanium
Diameter: 10mm
Thickness: 1mm
Fiber diameter: 12um
Technique: Sintering and laser cutting

Product Features

Optimized 12-micron fiber diameter ensures maximized surface area for enhanced catalytic activity and superior gas permeability in demanding electrochemical applications including PEM electrolyzer stacks and SOFC systems.

Precisely controlled 70-80% porosity range enables tailored pore architectures for specific mass transport requirements, significantly improving reactant distribution and byproduct removal as advanced Porous Transport Layers (PTL).

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Exceptional high-temperature structural stability maintains dimensional integrity under thermal cycling conditions up to 500°C, preventing performance degradation in fuel cell and filtration operations.

Advanced surface modification capability accepts platinum or gold coatings that effectively prevent TiO2 formation, substantially reducing interfacial contact resistance while ensuring long-term electrochemical stability.

Product Applications

PEM Electrolyzer Systems - Functions as critical Porous Transport Layers (PTL) facilitating efficient hydrogen production through optimized gas diffusion and current collection capabilities.
High-Temperature Fuel Cell Stacks - Serves as advanced Gas Diffusion Layers (GDL) in SOFC systems, maintaining structural stability under extreme thermal cycling conditions.
Aerospace Thermal Management - Provides lightweight thermal insulation and vibration damping solutions for spacecraft propulsion systems and avionics cooling applications.

Introduction to Alkaline Electrolyzer Electrode

Industrial Hot Gas Filtration - Enables fine particulate removal from high-temperature process streams in metallurgical and chemical processing operations.
Electrochemical Reactor Designs - Supports catalyst integration and reactant distribution in specialized reactor configurations for synthetic fuel production and chemical synthesis.
Advanced Energy Storage Systems - Enhances performance in next-generation metal-air batteries through optimized oxygen diffusion and electrolyte management capabilities.

Electrochemical Reactor | Ion Electrochemical Reactor | Vapourtec

The distinct performance advantages of a 12-micron fiber diameter

The specification of a 12-micron fiber diameter is a critical engineering parameter in titanium fiber felts, delivering distinct performance advantages over felts made with thicker fibers. Its primary benefits stem from fundamentally altering the material's geometric structure and surface interaction capabilities.

1. Enhanced Specific Surface Area & Catalytic Support

A 12-micron diameter creates a significantly higher specific surface area within the same volume compared to coarser fibers. This expanded surface provides more active sites for applying precious metal coatings like platinum or gold. The result is superior catalytic activity and a more effective barrier against the formation of electrically insulating TiO₂, which is crucial for maintaining low interfacial contact resistance in electrochemical cells.

2. Optimized Pore Structure & Capillary Action

Fibers of this fineness enable the formation of a more uniform and intricate network of smaller, hierarchical pores. This refined architecture allows for superior capillary action and controlled electrolyte management in Porous Transport Layers (PTLs), facilitating efficient reactant delivery and product removal. It achieves an optimal balance between mechanical stability and minimal mass transport resistance.

3. Improved Gas Diffusion Efficiency

The dense, fine-fiber matrix produces a larger number of smaller pores per unit area. This characteristic is essential for functions as a Gas Diffusion Layer (GDL), as it promotes a more uniform gas flux across the entire active surface. This prevents localized hot spots and ensures consistent current distribution, thereby enhancing the overall efficiency and durability of fuel cells and electrolyzers.

4. Superior Mechanical Compliance & Sealing

The inherent flexibility of 12-micron fibers allows the felt to conform more easily under compression. This creates a more effective seal against bipolar plates in a cell stack, minimizing gas crossover and reducing contact resistance. The finer fibers distribute compressive stresses more evenly, enhancing the felt's durability and long-term structural integrity under mechanical load and thermal cycling.