Electrocatalysts for Fuel Cell / Water Electrolysis (PEM type)
Development and Stable Supply of Catalysts toward Achieving Carbon Neutrality
Polymer Electrolyte Fuel Cells (PEFCs) are already being introduced and used by countries around the world as an application of hydrogen use. In particular, they are increasingly being adopted as power sources for mobility applications—such as buses and trucks—as well as for permanent and emergency power supplies. We provide a stable supply of electrocatalysts for such applications globally, and undertake the development of catalysts with even better catalytic activity and durability.
We also develop electrocatalysts for Polymer Electrolyte Membrane Water Electrolysis (PEMWE), which is being studied for adoption. Through these efforts, we contribute toward achieving a carbon-neutral society.
Electrocatalysts for Fuel Cell
■Standard Pt Catalysts
Using deposition technologies that give high Pt dispersion in a variety of types and specifications of carbon supports, we have developed a large range of products, including products that bring out the maximum performance of Pt catalysts, products that suppress Pt elution caused by load fluctuations during fuel cell operation, and products with enhanced durability at high potential. These products are currently the standard catalysts.
| Product name | Pt Loading (wt%) |
Carbon support |
|---|---|---|
| TEC10E40E | 40 | High surface area carbon |
| TEC10E50E | 50 | |
| TEC10E60TPM | 60 | |
| TEC10E70TPM | 70 | |
| TEC10V30E | 30 | VULCAN® XC72 |
| TEC10V40E | 40 | |
| TEC10V50E | 50 |
Platinum Catalyst TEM image
* Please inquire for carbon support type, platinum content, and alloy catalysts other than the standard products.
* VULCAN® is a registered trademark of Cabot Corporation.
■Standard Platinum-alloy Catalysts
We developed PtCo catalysts with high oxygen reduction activity by optimizing the alloy catalyst deposition process and improving catalytic activity and dispersion.
| Product name | Pt Loading (wt%) |
Carbon support |
|---|---|---|
| TEC36E32 | 30 | High surface area carbon |
| TEC36E52 | 50 |
* Orders compatible with different platinum content,
carbon support type and alloy catalysts
Platinum-alloy (PtCo) Catalyst TEM image
Performance of Pt and PtCo as Cathodes
■Standard Platinum/Ruthenium Catalysts
By thoroughly evaluating combinations of catalyst types and repeated development and optimization of processes, we developed PtRu-alloy catalysts with excellent tolerance to carbon monoxide toxicity. They have become the standard for anode catalysts of reformed hydrogen fuels.
| Product name | (wt%) |
(Pt:Ru) |
Carbon support |
|---|---|---|---|
| TEC61E54 | 54 | 1：1.5 | area carbon |
| 54 | 1：1.5 | ||
| 58 | 1：2 |
*Orders compatible with different platinum content, carbon support type and alloy catalysts
Standard Platinum/Ruthenium catalyst TEM image
Performance of Anti-Co Poisoning of Pt/Ru Catalysts, as Anodes
In addition to standard catalysts, we also offer alloy catalysts and catalysts using various supports,
Please contact us for details.
Electrocatalysts for Water Electrolysis
We provide highly active and durable Ir oxide anode catalysts and Pt-based cathode catalysts as electrocatalysts for PEM-type water electrolysis. We are also developing catalysts to prevent H2 leaks and Ir reduction catalysts.
| Product name | Features | Ir Content (wt%) |
Catalyst surface area (m2/g) |
Average crystallite size (Å) |
Degradation rate (µV/h)* |
|---|---|---|---|---|---|
| TEC77100 | High activity | 76 | 90 – 120 | 10 – 20 | 5 – 40 |
| TEC77110 | High durability | 86 | 40 – 70 | 20 – 40 | 0 – 10 |
*Cell temperature : 50℃, Constant current： 2.0 A/cm2
Iridium catalysts TEM image
High activity IrOx catalyst TEC77100
High durability IrO2 catalyst TEC77110
Initial performance of Ir oxide catalysts
