Optimised catalysts for PEM Fuel Cells & Water Electrolysers
PGM based Electrocatalysts and Inks
Our new range of catalysts for PEM technology, HyPer, is the culmination of a cross company development program using our teams of scientists in the US & UK. This has achieved a range of products which offer improved durability and give higher electrochemical performance aiding the further adoption of this vital technology in the fight against climate change.
Proton Exchange Membrane (PEM) technology relies on catalysts, namely platinum, iridium & alloys containing PGM's. It is the use of heterogeneous platinum group metal catalysts that allows PEM technology to give superior flexibility (such as rapid start up) and high levels of performance at ambient temperatures.
PGM's are relatively rare metals and trade at relatively high prices. To mitigate this, the metals are used in finely dispersed form to maximize the surface to volume ratio. Today, the best catalysts consist of 2-8 nm particles displaying a very large specific surface area.
In fuel cells, to prevent the sintering of these small nanoparticles, which can cause a decrease in catalytic activity during operation, the metal is often deposited on high surface area supports to prevent particle-particle contact. This also reduces the amount platinum required optimizing the use of the metal and limiting the impact on price.
The HyPer range uses an improved metal deposition technique, specialist selection of carbon support materials and post production treatments to achieve their improved durability and higher electrochemical surface area.
HyPer FC - Fuel Cell catalysts
HyPer WE - Water Electrolyser catalysts
Fuel Cell Products
Description
ECSA (g Pt)
HyPer FC 100
HyPer FC 120
HyPer FC 140
HyPer FC 150
HyPer FC 150X
HyPer FC 170X
HyPer FC 200
High Surface Area Platinum Black
20% Platinum on a conductive carbon support
40% Platinum on a conductive carbon support
50% Platinum on a conductive carbon support
50% Platinum on a high surface area carbon support
70% Platinum on a high surface area carbon support
50:50 atomic ratio Platinum Ruthenium
15m2/g
80m2/g
55m2/g
50m2/g
>100m2/g
70m2/g
70m2/g
TEM image = HyPer FC 140
HyPer FC grades offer higher levels of durability and greater retention of electrochemical performance
HyPer FC grades show improved electrochemical performance and higher ECSA
TEM image = HyPer FC 150X
Electrolyser Products
Description
BET Surface Area
HyPer WE 100
HyPer WE 150
HyPer WE 500
HyPer WE 520
HyPer WE 530
HyPer WE 550
HyPer WE supported
High Surface Area Platinum Black
50% Platinum on a conductive carbon support
Iridium Black
Iridium Oxide
High Surface Area Iridium Oxide
Iridium Ruthenium Oxide
Contact us to discuss supported iridium anode catalysts
25 - 40m2/g
>100m2/g
20-40m2/g
45 - 60m2/g
120 - 150m2/g
120 - 150 m2/g
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HyPer WE 550 - Iridium Ruthenium Oxide
HyPer WE 550 - Iridium Ruthenium Oxide has a long track record of use in the field (>10 years) and offers demonstrable improvements in durability under the harsh conditions of the electrolyser anode.
Ames Goldsmith Ceimig’s unique production process results in a truly intimate alloy of iridium & ruthenium, meaning ruthenium is stable in the catalyst layer and offers synergistic benefits in terms of performance.
Contact our team to discuss ink or paste manufacturing for your fuel cell or water electrolyser application
If you have a Fuel Cell application or require specific material characteristics which are unavailable from current products Ceimig offers a Custom Compound Synthesis Service (CCSS) to help you meet the more challenging requirements.