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 starting to be adopted as power sources for mobility applications—such as buses and trucks—and stationary fuel cells. We provide a stable supply of electrode catalysts for such applications globally, and undertake the development of catalysts with even better catalytic activity and durability.
We also develop electrode catalysts for polymer electrolyte membrane water electrolysis (PEMWE), which is being studied for adoption. Through these efforts, we contribute toward achieving a carbon-neutral society.
PEFC = Polymer Electrolyte Fuel Cells
PEMWE = Proton Exchange Membrane Water Electrolysis
■Standard Pt Catalyst
We explored and evaluated various carbon supports to bring out the performance of Pt catalysts. We also suppressed Pt elution arising from load fluctuation during fuel cell driving to improve durability and worked on the development of high Pt dispersion deposition methods. In this way, we developed high-performance and high-durability Pt catalysts, which are the current standard catalysts.
| Product name | Pt content (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 Catalyst
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 content (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 catalyst
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 | Carbon support | ||
|---|---|---|---|
| TEC61E54 | 54 | 1：1.5 | |
| 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
■Anode Catalyst for Water Electrolysis
The adoption of PEM water electrolysis is being studied as an application for hydrogen production toward achieving carbon neutrality.
We have been developing highly activity and durability electrocatalysts for PEM water electrolysis.
Please contact us for details.