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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

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

All your Questions Answered

  1. How can the material be cut? What cutting technologies can be used?

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    You can cut our materials via laser cutting with the required safety measures to prevent fires (as Titanium is extremely flammable).

    Mechanical cutting is possible if the tolerances can meet your requirements.

  2. What is the grade of the materials being used?

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    Grade 1

  3. What are the tolerances on dimensions, length, width and thickness?

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    The standard tolerances which are applicable to the dimensions of our sample materials: ± 4mm.

    For commercial projects, we have custom cutting technologies with tolerances of ± 0,5 mm and a thickness tolerance of ± 10%.

  4. Can the Titanium products be coated with Platinum (Pt) or Gold (Au)?

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    We provide protective, double-sided platinum coatings with a standard coating thickness of 200 nm nominal.

    Custom coating specifications are available for industrial quantities.

    Find the more information on platinum coated titanium PTL.

  5. What product dimensions are available?

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    Limiting to standard products:

    • 210 x 290 mm
    • 430 x 580 mm

    You can request a quote on our website.

    Larger and custom sizes are available for industrial quantities. Please contact us with your questions.

  6. Can you explain your product codes?

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  7. What is the new name of the materials I have ordered in the past?

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    We've changed our material codes in 2024. If you're looking for the old material codes, you can find them in this table, together with the new material codes.

    You can request a quote on our website.

    Material Code (before 2024)   Material Code (2024) Thickness Thickness Porosity Surface Area
    Currento® 2NI 06-0,100   Currento® PTL Ni-66/100 (215 x 290 mm) 0,10 mm 0.004 inch 66% Normal
      Currento® PTL Ni-66/100 (430 x 580 mm)
    Currento® 2NI 06-0,200   Currento® PTL Ni-83/200 (215 x 290 mm) 0,20 mm 0.008 inch 83%
      Currento® PTL Ni-83/200 (430 x 580 mm)
    Currento® 2NI 18-0,250   Currento® PTL Ni-60/250 (215 x 290 mm) 0,25 mm 0.010 inch 60%
      Currento® PTL Ni-60/250 (430 x 580 mm)
    Currento® 2NI 30-0,500   Currento® PTL Ni-66/500 (215 x 290 mm) 0,50 mm 0.020 inch 66%
      Currento® PTL Ni-66/500 (430 x 580 mm)
    Currento® 2NI 18-0,500   Currento® PTL Ni-80/500 (215 x 290 mm) 80%
      Currento® PTL Ni-80/500 (430 x 580 mm)
    Currento® 2NI 30-1,000   Currento® PTL Ni-83/1000 (215 x 290 mm) 1,00 mm 0.039 inch 83%
      Currento® PTL Ni-83/1000 (430 x 580 mm)
    -   Currento® PTL INC 79/600 (210 x 297 mm) 0,60 mm 0.024 inch 79% Medium
      Currento® PTL INC 79/600 (430 x 580 mm)
    -   Currento® PTL NI HR 78/300 (210 x 297 mm) 0,30 mm 0.012 inch 78% High
      Currento® PTL NI HR 78/300 (430 x 580 mm)
    -   Currento® PTL NI HR 82/500 (210 x 297 mm) 0,50 mm 0.020 inch 82%
      Currento® PTL NI HR 82/500 (430 x 580 mm)
    -   Currento® PTL INC 82/500 (210 x 297 mm)
      Currento® PTL INC 82/500 (430 x 580 mm)
                 
    Currento® 60 BL3   Currento® PTL SS-74/145 (210 x 297 mm) 0,15 mm 0.006 inch 74% Normal
    Currento® PTL SS-74/145 (430 x 580 mm)
    - Currento® PTL SS-85/1000 (210 x 297 mm) 1,00 mm 0.039 inch 85%
    Currento® PTL SS-85/1000 (430 x 580 mm)
    Currento® 20 AL3 Currento® PTL SS-82/500 (210 x 297 mm) 0,50 mm 0.020 inch 82% Medium
    Currento® PTL SS-82/500 (430 x 580 mm)
    Currento® 10 BL3 Currento® PTL SS-81/200 (210 x 297 mm) 0,20 mm 0.008 inch 81% High
    Currento® PTL SS-81/200 (430 x 580 mm)
    Currento® 10 FP3 Currento® PTL SS-71/260 (210 x 297 mm) 0,26 mm 0.010 inch 71%
    Currento® PTL SS-71/260 (430 x 580 mm)
    Currento® 10 AL3 Currento® PTL SS-78/300 (210 x 297 mm) 0,30 mm 0.012 inch 78%
    Currento® PTL SS-78/300 (430 x 580 mm)
    -   Currento® PTL SS-62/410 (210 x 297 mm) 0,41 mm 0.016 inch 62%
      Currento® PTL SS-62/410 (430 x 580 mm)
                 
    Currento® 2GDL6-0,150   Currento® PTL Ti-56/150 (215 x 290 mm) 0,15 mm 0.006 inch 56% Normal
      Currento® PTL Ti-56/150 (430 x 580 mm)
    Currento® 2GDL10-0,250   Currento® PTL Ti-56/250 (215 x 290 mm) 0,25 mm 0.010 inch
      Currento® PTL Ti-56/250 (430 x 580 mm)
    Currento® 2GDL20-0,500   Currento® PTL Ti-56/500 (215 x 290 mm) 0,50 mm 0.020 inch
      Currento® PTL Ti-56/500 (430 x 580 mm)
    Currento® 2GDL20-1,000   Currento® PTL Ti-56/1000 (215 x 290 mm) 1,00 mm 0.039 inch
      Currento® PTL Ti-56/1000 (430 x 580 mm)
    -   Currento® PTL Ti-66/200 (215 x 290 mm) 0,20 mm 0.008 inch 66%
      Currento® PTL Ti-66/200 (430 x 580 mm)
    -   Currento® PTL Ti-67/200 (215 x 290 mm) 0,20 mm 0.008 inch 67%
      Currento® PTL Ti-67/200 (430 x 580 mm)
    -   Currento® PTL Ti-68/350 (215 x 290 mm) 0,35 mm 0.014 inch 68%
      Currento® PTL Ti-68/350 (430 x 580 mm)
    -   Currento® PTL Ti-70/750 (215 x 290 mm) 0,75 mm 0.030 inch 70%
      Currento® PTL Ti-70/750 (430 x 580 mm)
    -   Currento® PTL Ti-77/2000 (215 x 290 mm) 2,00 mm 0.079 inch 77%
      Currento® PTL Ti-77/2000 (430 x 580 mm)
    -   Currento® PTL Ti-78/2000 (215 x 290 mm) 2,00 mm 0.079 inch 78%
      Currento® PTL Ti-78/2000 (430 x 580 mm)
                 
    No separate material code existed   Currento® PTL Ti-56/150 PT200 (220 x 290 mm) 0,15 mm 0.006 inch 56% Normal
      Currento® PTL Ti-56/150 PT200 (440 x 550 mm)
      Currento® PTL Ti-56/250 PT200 (220 x 290 mm) 0,25 mm 0.010 inch
      Currento® PTL Ti-56/250 PT200 (440 x 550 mm)
      Currento® PTL Ti-56/500 PT200 (220 x 290 mm) 0,50 mm 0.020 inch
      Currento® PTL Ti-56/500 PT200 (440 x 550 mm)

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