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Carbon solutions
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Carbon solutions
VINATech is the only producer in the world of catalyst support and catalysts for fuel cells
and MEA (Membrane Electrode Assembly).All of these products are based on the company's patented CNF materials technology
and MEA (Membrane Electrode Assembly).All of these products are based on the company's patented CNF materials technology
Introduction of fuel cells
FC (Fuel Cell) is a device that changes chemical energy to electrical energy and a system that generates energy
continuously unless the fuel supply stops. It has the capabilities of both power generator and battery. FC uses hydrogen and oxygen as its fuel. It is a clean energy source that discharges only water through a chemical process.
continuously unless the fuel supply stops. It has the capabilities of both power generator and battery. FC uses hydrogen and oxygen as its fuel. It is a clean energy source that discharges only water through a chemical process.
Fuel cell products are classified by the type of their electrolytes. The fuel cell products we are currently developing include
PEMFC (Proton Exchange Membrane FC), DMFC (Direct Methanol FC), MCFC (Molten Carbonate FC), and SOFC (Solid Oxide FC).
PEMFC (Proton Exchange Membrane FC), DMFC (Direct Methanol FC), MCFC (Molten Carbonate FC), and SOFC (Solid Oxide FC).
| Type | Electrolytes | Operating temperatures(℃) | Application areas |
|---|---|---|---|
| Proton Exchange Membrane FC (PEMFC) | Proton Exchange Membrane | 50~80 | Transportation, Fixed type for in-building application |
| Direct Methanol FC (DMFC) | Proton Exchange Membrane | 50~80 | Portable backup power supply unit for mobile devices |
| Molten Carbonate FC (MCFC) | Molten Carbonate (Li2CO3 + K2CO3) | ~650 | for the distributed generation Fixed type |
| Solid Oxide FC (SOFC) | Ceramic (ZrO2 / Y2O3) | ~1000 | for distributed generation in buildings Fixed type |
VINATech's catalyst support, catalyst and MEA products are suitable for PEMFC and DMFC.
Features of VINATech's fuel cell catalyst support products
Fuel cells require micro catalyst particles, 3 nm or below, to improve their catalytic performance. Small particles
cannot be created only with catalysts. Catalysts have to be distributed on catalyst support.
VINATech’s fuel cell catalyst supports are CNF or crystalline carbon-black products which are designed to minimize the shortening of catalysts' life cycle due to corrosion.
cannot be created only with catalysts. Catalysts have to be distributed on catalyst support.
VINATech’s fuel cell catalyst supports are CNF or crystalline carbon-black products which are designed to minimize the shortening of catalysts' life cycle due to corrosion.
| Product Name | BET(m2/g) | XRD(d002)(nm) | Fe content | Materials used |
|---|---|---|---|---|
| VFS-H | 100 | 0.34~0.36 | Under 500 ppm | CNF products |
| VFS-P | 50 | 0.335 ~ 0.35 | Under 500 ppm | CNF products |
| VFS-SP | 450 | 0.34 ~ 0.36 | Under 100 ppm | Carbon-black |
*11 BET: Specific surface area in accordance with the theories of Brunauer-Emmett-Teller
*2 XRD(d002): X-Ray Diffraction, inter-layer distance generated by diffraction of X-ray
*2 XRD(d002): X-Ray Diffraction, inter-layer distance generated by diffraction of X-ray
Carbon is seen to corrode easily at 1.2 V or above, as a result of its reaction to oxygen. Corrosion of carbon contained in
catalyst supports results in deterioration of catalysts' performance and shortening of the fuel cells' life cycle.
catalyst supports results in deterioration of catalysts' performance and shortening of the fuel cells' life cycle.
VINATech's fuel cell catalyst support showed strong corrosion resistance in a carbon corrosion test based on
electrochemical analysis. Corrosion resistance analyses per catalyst supports are as follows.
electrochemical analysis. Corrosion resistance analyses per catalyst supports are as follows.
Features of VINATech's fuel cell catalyst products
VINATech’s fuel cell catalysts are made of platinum, forming 2.5 to 3.0 nm particles that are characterized by broad
reaction areas and excellent corrosion resistance. They are suitable for applications that improve fuel cells' performance and life cycle.
reaction areas and excellent corrosion resistance. They are suitable for applications that improve fuel cells' performance and life cycle.
| Product name | Features | Formative structure of catalyst support | Content of platinum catalysts(wt%) | Properties of platinum catalysts | Properties of CNF | ||
|---|---|---|---|---|---|---|---|
| Diameter of a particle(nm) | Specific surface area(m2/g) | Diameter of a particle(nm) | Specific surface area(m2/g) | ||||
| VFC-PL4000 | High durability | Platelet | 40 | 2.8~3.0 | 60~70 | 300 | 70 |
| VFC-HE6000 | High performance | Herring bone | 60 | 2.5~2.8 | 90~100 | 30~50 | 150 |
| VFC-SP6000 | High catalyst support performance | Sphere | 60 | 2.5~3.0 | 80~100 | 50 | 400 |
Our fuel cell catalyst products proved highly resistant to corrosion in a holding test satisfying carbon corrosion
conditions. They also demonstrated a low decrement of reaction area.
conditions. They also demonstrated a low decrement of reaction area.
| Product name | ECS before(m2/g) *1 | ECS after(m2/g) | ECS Change(%) |
|---|---|---|---|
| Pt on Carbon Black | 28.6 | 9.8 | -65.7 |
| Pt on VFS-P | 31.0 | 27.4 | -11.6 |
*1 ECS : Electrochemical Surface Area
Features of VINATech's fuel cell MEA
VINATech's fuel cell MEA features excellent performance in discharging generated water,
aided by our less-than 100 nm electrode porosity controlling technology.
This product is suitable for improving the performance and life cycle of fuel cells.
aided by our less-than 100 nm electrode porosity controlling technology.
This product is suitable for improving the performance and life cycle of fuel cells.
| Product name | Type | Size | Applications |
|---|---|---|---|
| VFM-PEMFC | CCM 3 layer | ~ 300cm2 | Transportation, Fixed type for in-building application |
| VFM-DMFC | CCG 5 layer | ~ 300cm2 | Portable backup power supply unit for mobile devices |
VINATech's fuel cell MEA features excellent performance in discharging generated water, aided by our less-than
100 nm electrode porosity controlling technology. This product is suitable for improving the performance and life cycle of fuel cells.
100 nm electrode porosity controlling technology. This product is suitable for improving the performance and life cycle of fuel cells.
Application areas of VINATech's fuel cell components
VINATech offers combined solutions including Catalyst support components, catalysts and MEA, optimized to the customer's application area and specifications. In particular, for MEA, we offer special catalyst support and custom-tailored catalysts to your application areas and requirements. 
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