Highly Hydrophilic · Exceptionally Stable · An Advanced Diffusion Layer for High-Current-Density Water Electrolysis
In next-generation water electrolysis systems, diffusion layers are no longer passive components that merely provide electrical conduction and mechanical support. Instead, they have become critical functional interfaces governing electrochemical reactions, gas–liquid mass transport, and overall fluid management.
Youveim® Hydrophilic Titanium Fiber Paper (Titanium Felt) is designed precisely from this system-level perspective. Built on a three-dimensional sintered structure of high-purity titanium fibers and enhanced through proprietary hydrophilic surface engineering, it significantly improves wettability and gas–liquid distribution while preserving titanium’s intrinsic corrosion resistance and electrical conductivity.
As a result, it serves as an ideal diffusion layer solution for high-stability electrolyzers, particularly on the anodic OER side, where harsh oxidative and high-potential conditions demand the highest material reliability.
Unlike conventional diffusion layers designed as “electrochemically inert” supports, Youveim® hydrophilic titanium fiber paper integrates multiple performance dimensions at the material level:
Electrochemical stability
Controlled interfacial wettability
Efficient gas–liquid mass transfer
Long-term operational consistency
Functionally, it aligns closely with hydrophilic nickel foam, while offering significantly higher safety margins under strong oxidation and high-potential environments, making it uniquely suited for anodic applications.
Through proprietary surface modification, the titanium fiber paper exhibits excellent wettability. Electrolyte rapidly spreads and uniformly infiltrates the entire three-dimensional pore network, effectively preventing localized drying or gas blockage.
This results in:
Increased effective electrochemical reaction area
Improved interfacial stability under high current density
Optimized gas bubble detachment behavior
With a controllable porosity range of 50–70%, the interconnected 3D pore structure enables coordinated gas and liquid transport within the material:
Rapid oxygen evolution and release
Continuous electrolyte replenishment at the reaction interface
Reduced concentration polarization and pressure drop
The continuously sintered titanium fiber network forms a stable and direct electron-conduction pathway. Compared with coated or multi-interface structures, this design ensures lower electrical resistance and superior current uniformity—ideal for long-term, high-load operation.
Titanium maintains structural and electrochemical integrity in strongly acidic, strongly alkaline, and high-potential OER environments. Unlike carbon-based materials, it does not suffer from oxidative degradation, making it a preferred material platform for anodic diffusion layers.
Easy to cut, laminate, and stack
Resistant to powdering and structural collapse
Suitable for laboratory cells as well as industrial-scale electrodes
Stronger electrolyte retention
More uniform current distribution
Suitable for low to medium current densities
Recommended for:
Fundamental research, small electrolyzers, and applications requiring precise reaction control
⚠ Slightly higher gas transport resistance; not optimal for extreme operating conditions
More open gas pathways
Lower gas-release resistance
Well-suited for high current density and industrial operation
⚠ Requires proper fluid-flow design to ensure sufficient wetting
Higher flexibility and easier handling
More uniform pore distribution
Favorable for catalyst loading
Recommended for:
Research applications, electrode development, and cathode-side use
Enhanced fiber continuity and electrical stability
Fewer protruding fiber ends, reducing short-circuit risk
More robust structure for prolonged operation
Highly recommended for:
Anodic OER diffusion layers and long-term industrial electrolysis
Youveim® hydrophilic titanium fiber paper is an excellent platform for catalyst integration and interfacial functionalization:
Compatible with IrO₂, RuO₂, Pt, Pt black, and related catalysts
Supports spray coating, electrodeposition, and chemical deposition
Strong coating adhesion with uniform catalyst distribution
Typical post-treatment temperatures:
60–80 °C (drying) | 350–450 °C (adhesion enhancement)
Rinse gently with deionized water or ethanol
Avoid direct contact with the functional surface
Ultrasonic cleaning in DI water or ethanol
Dry and store in sealed conditions
Avoid exposure to oils, greases, and silicone contaminants
A slight reduction in hydrophilicity may occur during air exposure due to:
Natural rearrangement of high-energy surface states
Adsorption of trace organics and moisture from air
This is a general physical phenomenon common to hydrophilic materials, not a failure of the material or process. Simple cleaning or mild surface activation prior to use effectively restores wettability.
Porosity: 50–60% / 60–70%
Thickness: 0.25 / 0.4 / 0.6 / 0.8 mm
Average fiber diameter: 25–50 μm
Fiber length: 35 mm / 70 mm
Standard sizes: 5 × 5 cm | 10 × 10 cm | 20 × 20 cm
Custom dimensions available
Youveim® Hydrophilic Titanium Fiber Paper (Titanium Felt) seamlessly combines:
The extreme durability of titanium-based materials
Advanced hydrophilic interface engineering
Optimized gas–liquid transport and fluid management
It is a key functional material for next-generation high-performance water electrolysis systems. Whether for exploratory research or industrial-scale long-term operation, Youveim® delivers greater stability, higher efficiency, and superior control at the electrochemical interface.
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Price List (USD)
Exchange rate: USD 1 = CNY 5
| Product Code | Thickness (mm) | Porosity | Fiber Length | Fiber Diameter | 5 × 5 cm (USD) | 10 × 10 cm (USD) | 20 × 20 cm (USD) | Lead Time |
|---|---|---|---|---|---|---|---|---|
| TF25L | 0.25 | 50–60% | 35 mm | 25–50 μm | $24 | $80 | $300 | In stock |
| TF25M | 0.25 | 60–70% | 70 mm | 25–50 μm | $24 | $80 | $300 | In stock |
| TF30L | 0.30 | 50–60% | 35 mm | 25–50 μm | $24 | $80 | $300 | In stock |
| TF40M | 0.40 | 60–70% | 70 mm | 25–50 μm | $30 | $90 | $340 | In stock |
| TF60M | 0.60 | 60–70% | 70 mm | 25–50 μm | $34 | $130 | $460 | In stock |
| TF80M | 0.80 | 60–70% | 70 mm | 25–50 μm | $40 | $140 | $520 | In stock |
Prices above refer to standard hydrophilic treatment
Enhanced / super-hydrophilic versions are available upon request
Custom sizes, thicknesses, and porosity ranges are supported
Bulk orders and long-term supply agreements are eligible for additional discounts
Partial references citing our materials (from Google Scholar)
Carbon Dioxide Reduction
1. ACS Nano Strain Relaxation in Metal Alloy Catalysts Steers the Product Selectivity of Electrocatalytic CO2 Reduction
The bipolar membrane (Fumasep FBM) in this paper was purchased from SCI Materials Hub, which was used in rechargeable Zn-CO2 battery tests. The authors reported a strain relaxation strategy to determine lattice strains in bimetal MNi alloys (M = Pd, Ag, and Au) and realized an outstanding CO2-to-CO Faradaic efficiency of 96.6% with outstanding activity and durability toward a Zn-CO2 battery.
2. Front. Chem. Boosting Electrochemical Carbon Dioxide Reduction on Atomically Dispersed Nickel Catalyst
In this paper, Vulcan XC-72R was purchased from SCI Materials Hub. Vulcan XC 72R carbon is the most common catalyst support used in the anode and cathode electrodes of Polymer Electrolyte Membrane Fuel Cells (PEMFC), Direct Methanol Fuel Cells (DMFC), Alkaline Fuel Cells (AFC), Microbial Fuel Cells (MFC), Phosphoric Acid Fuel Cells (PAFC), and many more!
3. Adv. Mater. Partially Nitrided Ni Nanoclusters Achieve Energy-Efficient Electrocatalytic CO2 Reduction to CO at Ultralow Overpotential
An AEM membrane (Sustainion X37-50 Grade RT, purchased from SCI Materials Hub) was activated in 1 M KOH for 24 h, washed with ultra-purity water prior to use.
4. Adv. Funct. Mater. Nanoconfined Molecular Catalysts in Integrated Gas Diffusion Electrodes for High-Current-Density CO2 Electroreduction
In this paper (Supporting Information), an anion exchanged membrane (Fumasep FAB-PK-130 obtained from SCI Materials Hub (www.scimaterials.cn)) was used to separate the catholyte and anolyte chambers.
SCI Materials Hub: we also recommend our Fumasep FAB-PK-75 for the use in a flow cell.
5. Appl. Catal. B Efficient utilization of nickel single atoms for CO2 electroreduction by constructing 3D interconnected nitrogen-doped carbon tube network
In this paper, the Nafion 117 membrane was obtained from SCI Materials Hub.
In this paper, Proton exchange membrane (Nafion 117), Nafion D520, and Toray 060 carbon paper were purchased from SCI Materials Hub.
7. National Science Review Confinement of ionomer for electrocatalytic CO2 reduction reaction via efficient mass transfer pathways
An anion exchange membrane (PiperION-A15-HCO3) was obtained from SCI Materials Hub.
8. Catalysis Communications Facilitating CO2 electroreduction to C2H4 through facile regulating {100} & {111} grain boundary of Cu2O
Carbon paper (TGPH060), membrane solution (Nafion D520), and ionic membrane (Nafion N117) were obtained from Wuhu Eryi Material Technology Co., Ltd (a company under SCI Materials Hub).
Batteries
1. J. Mater. Chem. A Blocking polysulfides with a Janus Fe3C/N-CNF@RGO electrode via physiochemical confinement and catalytic conversion for high-performance lithium–sulfur batteries
Graphene oxide (GO) in this paper was obtained from SCI Materials Hub. The authors introduced a Janus Fe3C/N-CNF@RGO electrode consisting of 1D Fe3C decorated N-doped carbon nanofibers (Fe3C/N-CNFs) side and 2D reduced graphene oxide (RGO) side as the free-standing carrier of Li2S6 catholyte to improve the overall electrochemical performance of Li-S batteries.
This paper used more than 10 kinds of materials from SCI Materials Hub and the authors gave detailed properity comparsion.
The commercial IEMs of Fumasep FAB-PK-130 and Nafion N117 were obtained from SCI Materials Hub.
Gas diffusion layers of GDL340 (CeTech) and SGL39BC (Sigracet) and Nafion dispersion (Nafion D520) were obtained from SCI Materials Hub.
Zn foil (100 mm thickness) and Zn powder were obtained from the SCI Materials Hub.
Commercial 20% Pt/C, 40% Pt/C and IrO2 catalysts were also obtained from SCI Materials Hub.
3. Journal of Energy Chemistry Vanadium oxide nanospheres encapsulated in N-doped carbon nanofibers with morphology and defect dual-engineering toward advanced aqueous zinc-ion batteries
In this paper, carbon cloth (W0S1011) was obtained from SCI Materials Hub. The flexible carbon cloth matrix guaranteed the stabilization of the electrode and improved the conductivity of the cathode.
4. Energy Storage Materials Defect-abundant commercializable 3D carbon papers for fabricating composite Li anode with high loading and long life
The 3D carbon paper (TGPH060 raw paper) were purchased from SCI Materials Hub.
5. Nanomaterials A Stable Rechargeable Aqueous Zn–Air Battery Enabled by Heterogeneous MoS2 Cathode Catalysts
Nafion D520 (5 wt%), and carbon paper (GDL340) were received from SCI-Materials-Hub.
Carbon cloth (W0S1011) and other electrochemical consumables required for air cathode were provided by SCI Materials Hub.
Oxygen Reduction Reaction
1. J. Chem. Eng. Superior Efficiency Hydrogen Peroxide Production in Acidic Media through Epoxy Group Adjacent to Co-O/C Active Centers on Carbon Black
In this paper, Vulcan XC 72 carbon black, ion membrane (Nafion N115, 127 μL), Nafion solution (D520, 5 wt%), and carbon paper (AvCarb GDS 2230 and Spectracarb 2050A-1050) were purchased from SCI Materials Hub.
2. Journal of Colloid and Interface Science Gaining insight into the impact of electronic property and interface electrostatic field on ORR kinetics in alloy engineering via theoretical prognostication and experimental validation
The 20 wt% Pt3M (M = Cr, Co, Cu, Pd, Sn, and Ir) were purchased from SCI Materials Hub. This work places emphasis on the kinetics of the ORR concerning Pt3M (M = Cr, Co, Cu, Pd, Sn, and Ir) catalysts, and integrates theoretical prognostication and experimental validation to illuminate the fundamental principles of alloy engineering.
Water Electrolysis
1. International Journal of Hydrogen Energy Gold as an efficient hydrogen isotope separation catalyst in proton exchange membrane water electrolysis
The cathodic catalysts of Pt/C (20 wt%, 2–3 nm) and Au/C (20 wt%, 4–5 nm) were purchased from SCI Materials Hub.
2. Small Science Silver Compositing Boosts Water Electrolysis Activity and Durability of RuO2 in a Proton-Exchange-Membrane Water Electrolyzer
Two fiber felts (0.35 mm thickness, SCI Materials Hub) were used as the porous transport layers at both the cathode and the anode.
3. Advanced Functional Materials Hierarchical Crystalline/Amorphous Heterostructure MoNi/NiMoOx for Electrochemical Hydrogen Evolution with Industry-Level Activity and Stability
Anion-exchange membrane (FAA-3-PK-130) was obtained from SCI Materials Hub website.
Fuel Cells
1. Polymer Sub-two-micron ultrathin proton exchange membrane with reinforced mechanical strength
Gas diffusion electrode (60% Pt/C, Carbon paper) was purchased from SCI Materials Hub.
Characterization
1. Chemical Engineering Journal Electrochemical reconstitution of Prussian blue analogue for coupling furfural electro-oxidation with photo-assisted hydrogen evolution reaction
An Au nanoparticle film was deposited on the total reflecting plane of a single reflection ATR crystal (SCI Materials Hub, Wuhu, China) via sputter coater.
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