Electrocatalysts for Fuel Cell / Water Electrolysis (PEM type)

Energy/Hydrogen Society Powders, Compounds, Nanoparticles, and Pellet Automotive Application Catalysts Precious Metal Catalysts Electrochemical electrodes

Image of Electrocatalyst for Fuel Cells and Water Electrolysis

What are " Electrocatalysts for Fuel Cell / Water Electrolysis"?
Electrocatalysts used in PEM fuel cells and water electrolysis equipment are precious metal materials that efficiently promote the chemical reaction between hydrogen and oxygen into electrical energy, and in water electrolysis, hydrogen generation through the electrolysis of water, which is the reverse reaction of fuel cells. They mainly use platinum and iridium to achieve highly efficient power generation and hydrogen generation while minimizing energy loss. This is a key technology that supports a decarbonized society.

Development and Stable Supply of Catalysts toward Achieving Carbon Neutrality

Polymer electrolyte membrane fuel cells (PEFCs) are already being introduced and put to practical use in hydrogen-related applications in various countries around the world. In particular, they are beginning to be adopted in mobility applications such as buses and trucks, as well as for both stationary and backup power sources. We are globally and stably supplying electrode catalysts for these applications and are working on the development of catalysts with higher activity and durability.
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.

PEFC = Polymer Electrolyte Fuel Cells
PEMWE = Polymer Electrolyte Membrane Water Electrolysis

Electrocatalysts for Fuel Cells

Standard Platinum Catalyst

TEM image of Pt catalyst — TEM image of platinum catalyst

We have developed various types of Pt catalysts, including those that use technologies for highly dispersed Pt on a wide variety of carbon carriers to maximize the performance of Pt catalysts, those that suppress Pt elution due to load fluctuations during fuel cell operation, and those with improved high-potential durability. These have become the current standard catalysts.

Product name	Pt Loading (wt%)	Carbon Support
TEC10E40E	40	High specific surface area carbon
TEC10E50E	50
TEC10E60TPM	60
TEC10E70TPM	70
TEC10V30E	30	VULCAN^®XC72
TEC10V40E	40
TEC10V50E	50

*Please contact us for carriers, amounts, and alloy catalysts other than standard products.
*VULCAN® is a registered trademark of Cabot Corporation in the United States.

Standard Platinum Alloy Catalyst

TEM image of platinum alloy (PtCo) 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 Loading (wt%)	Carbon Support
TEC36E32	30	High specific surface area carbon
TEC36E52	50	High specific surface area carbon

Evaluation of Pt / PtCo Catalyst as Cathode — **Characteristics of Platinum and Platinum Alloy Catalysts for Use as Cathodes**

Standard for Platinum/Ruthenium Catalysts

TEM image of PtRu catalyst — Standard Platinum/Ruthenium catalyst TEM image

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	PtRu Loading (wt%)	Molar ratio (Pt : Ru)	Carbon Support
TEC61E54	54	1：1.5	High specific surface area carbon
TEC61E54-HT2	54	1：1.5
TEC62E58-HT	58	1：2

*Please contact us for carriers, supported amounts, and alloy catalysts other than standard products.

Graph of CO Poisoning Resistance of PtRu Catalyst as Anode — **Tolerances of Platinum and Ruthenium Catalysts for Carbon Monoxide (CO) Poisoning as Anodes**

In addition to standard catalysts, we also offer alloy catalysts and catalysts using various carriers.
Please contact us for details.

Electrocatalyst 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 for preventing H₂ leaks and reducing Ir amount in catalysts.