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Palladium Coil
Available Configurations
Properties common to all products in this list
| Length |
|---|
| 0.05 m 0.1 m 0.2 m 0.3 m 0.5 m 1 m 2 m 3 m 5 m |
Need custom configurations? Please contact us.
Key Features
Palladium Coil at 99.75–99.99% purity is palladium foil in a continuous spooled format, bringing the material's unique hydrogen selectivity, catalytic surface activity, and noble metal chemical stability to roll-to-roll processing and high-volume converting operations:
Selective Hydrogen Permeability Preserved Across the Full Coil Length
Palladium's defining property — selective permeability to hydrogen while blocking all other gases — is preserved across the full coil length, making Palladium Coil well suited to the manufacture of hydrogen separation membrane assemblies, wound cell components, and catalytic strip devices where consistent hydrogen permeation performance across extended lengths is essential.
As-Rolled Format Suited to Winding, Cutting & Forming Operations
Palladium Coil is supplied in the as-rolled condition, providing the strip consistency and dimensional uniformity required for winding and forming operations in membrane electrode assembly production, rolled catalytic component fabrication, and pilot-scale hydrogen purification device manufacture where uniform strip geometry across the full coil length directly affects yield and device performance.
Purity Range 2N75 to 4N for Application-Specific Grade Selection
Purity options from 2N75 (99.75%) to 4N (99.99%) allow grade selection matched to the contamination sensitivity of the target application — 2N75 and 3N grades suit industrial membrane fabrication and catalytic component production where cost efficiency is a priority; 4N grade is selected for high-purity research use and fuel cell applications where trace impurity levels at the membrane surface are experimental or performance variables.
Coil Format Minimizes Handling Variation & Material Loss
The continuous coil format minimizes the handling variation and material loss inherent in cut sheet supply — providing consistent strip width and thickness across the full roll length for roll-to-roll converting, automated cutting, and high-volume membrane production where dimensional uniformity directly affects yield and device performance.
Reproducible Strip for Permeation Measurement & Surface Modification Research
In research, the coil format provides reproducible strip lengths of uniform width and surface condition for permeation measurement and surface modification studies — enabling systematic investigation of hydrogen flux, membrane conditioning effects, and catalytic surface treatments across well-defined, comparable strip specimens.
Industrial Applications
Palladium Coil is used across hydrogen membrane device manufacturing, fuel cell component production, catalytic fabrication, and research wherever consistent hydrogen permeation performance and noble metal surface properties must be maintained across the full length of a continuously processed metal strip:
- ✦ Hydrogen Separation Membrane Assembly Production
- Used as the membrane material in roll-to-roll hydrogen separation membrane assembly production, where palladium's selective hydrogen permeability across the full coil length — blocking all other gases while allowing hydrogen to diffuse through the bulk — provides the continuous, uniform membrane stock required for high-volume fabrication of hydrogen purification modules and isotope separation devices.
- ✦ Membrane Electrode Assembly Production for Fuel Cells
- Employed in membrane electrode assembly production for fuel cells, where the coil format supplies consistent palladium strip for continuous electrode fabrication and the material's catalytic surface activity and noble metal chemical stability ensure reliable electrochemical performance across the assembled membrane electrode area.
- ✦ Catalytic Component Fabrication
- Used as continuous strip stock for the fabrication of catalytic components, where palladium's well-documented catalytic activity for hydrogenation, oxidation, and coupling reactions — combined with the coil format's dimensional consistency — supports the production of catalytic strip devices, reactor liners, and catalytic membrane elements for chemical processing applications.
- ✦ Pilot-Scale Hydrogen Purification Device Manufacture
- Applied in pilot-scale hydrogen purification device manufacture where the coil format provides the uninterrupted membrane length required to assemble spiral-wound or flat-sheet purification modules, and where purity grade selection from 2N75 to 4N allows the contamination level of the membrane material to be matched to the purity specification of the target hydrogen product stream.
- ✦ Permeation Measurement & Surface Modification Research
- Used in research to provide reproducible, uniform palladium strip for hydrogen permeation measurement campaigns and systematic surface modification studies, where the coil format enables multiple equivalent test specimens to be cut from the same continuous length — ensuring that observed performance differences between specimens reflect experimental variables rather than strip-to-strip material variation.
Material Properties
| Element | Value |
|---|---|
| Atomic number | 46 |
| Crystal structure | Face centred cubic |
| Electronic structure | Kr 4d¹⁰ |
| Valences shown | 2, 3, 4 |
| Atomic weight( amu ) | 106.42 |
| Thermal neutron absorption cross-section( Barns ) | 6 |
| Photo-electric work function( eV ) | 5 |
| Natural isotope distribution( Mass No./% ) | 108/ 26.7 |
| Natural isotope distribution( Mass No./% ) | 110/ 11.8 |
| Natural isotope distribution( Mass No./% ) | 104/ 11.0 |
| Natural isotope distribution( Mass No./% ) | 102/ 1.0 |
| Natural isotope distribution( Mass No./% ) | 105/ 22.2 |
| Natural isotope distribution( Mass No./% ) | 106/ 27.3 |
| Atomic radius - Goldschmidt( nm ) | 0.137 |
| Ionisation potential( No./eV ) | 1/ 8.3 |
| Ionisation potential( No./eV ) | 2/ 19.4 |
| Ionisation potential( No./eV ) | 3/ 32.9 |
| Element | Value |
|---|---|
| Material condition | Soft |
| Material condition | Hard |
| Poisson's ratio | 0.39 |
| Poisson's ratio | 0.39 |
| Bulk modulus( GPa ) | 187 |
| Bulk modulus( GPa ) | 187 |
| Tensile modulus( GPa ) | 121 |
| Tensile modulus( GPa ) | 121 |
| Hardness - Vickers( kgf mm⁻² ) | 40 |
| Hardness - Vickers( kgf mm⁻² ) | 100 |
| Tensile strength( MPa ) | 140-195 |
| Tensile strength( MPa ) | 325 |
| Yield strength( MPa ) | 205 |
| Yield strength( MPa ) | 34.5 |
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 10.8@20 |
| Temperature coefficient( K⁻¹ ) | 0.0042@0-100 |
| Thermal emf against Pt (cold 0C - hot 100C)( mV ) | -0.57 |
| Element | Value |
|---|---|
| Boiling point( C ) | 3140 |
| Density( gcm⁻³ ) | 12@20°C |
| Element | Value |
|---|---|
| Melting point( C ) | 1554 |
| Latent heat of evaporation( J g⁻¹ ) | 3398 |
| Latent heat of fusion( J g⁻¹ ) | 157 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 244@25 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 71.8@0-100°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 11@0-100 |
Tolerances
| Thickness | <0.01mm | ±25% |
|---|---|---|
| Thickness | 0.01mm - 0.05mm | ±15% |
| Thickness | >0.05mm | ±10% |
| Coil Width | <100mm | ±1mm |
| Coil Width | >=100mm | +2% / -1% |
| Length | +10% / -0% |