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Titanium PTL

Titanium PTL

Titanium provides ideal performance in the highly oxygenated environments of PEM. Our titanium PTL (Porous Transport Layer) features better electrical potential than other metals. The inherent characteristics of titanium ensure longevity over the life of the PTL.  It is well-suited to low pH, and imparts oxidation and corrosion resistance, as well as structural integrity. It's proven history of stability makes titanium the PTL material of choice for your next PEM design.

 

The low pH, acidic environment of PEM contributes to an added oxide layer buildup. Over time, this leads to component degradation. While titanium fiber alone is prone to buildup, a thin platinum coating can make a difference. Learn more about our PT coated titanium PTL.

 

  • Maintains structural integrity with pressure changes
  • Proven history of long-term stability

 

Thickness (mm / inch)
Porosity (%)

Titanium PTL Product Portfolio

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Sparking innovation by forming bonds that last

Sparking innovation by forming bonds that last

The hydrogen production process depends upon optimal catalyst activity. This involves nearly complete contact between all active areas in the catalyst layer and the PTL. Doing so enables an ideal electrical connection to establish between the two. As such, the pores of the PTL should be small and even, with a smooth surface area. A platinum coating improves interface characteristics by more homogeneous current distributions.

 

  • Felt features smooth surface area and even pore sizes
  • Structural integrity maintains shape under irregular pressure
  • High strength lends to considerable temperature resistance

 

Image source: Paul Scherrer Institut, Tobias Schuler et al 2019 J. Electrochem. Soc. 166 F270

 

Features
  • Improved electrical potential
  • Metal fibers provide a strong framework of bonds
  • Delivers on 15 years of production consistence
Advantages
  • Resistant to corrosion and oxidation
  • Lowers dependency on noble metals
Applications
  • Proton Exchange Membrane (PEM)
  • Acidic environments with a low pH

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Sintered metal fiber media have pore sizes in the µm-range.

  • Compared to sintered metal powder, higher porosity, and thus permeability, can be achieved at similar pore size.
  • Compared to metal foam, sintered metal fiber media enable a stepwise reduction in pore size and corresponding increase in surface area.
Product sheet - Currento® - Porous transport layer