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.

Fuel Cell ProductsDescriptionECSA (g Pt)
HyPer FC 100High Surface Area Platinum Black15m2/g
HyPer FC 12020% Platinum on a conductive carbon support80m2/g
HyPer FC 14040% Platinum on a conductive carbon support55m2/g
HyPer FC 15050% Platinum on a conductive carbon support50m2/g
HyPer FC 150X50% Platinum on a high surface area carbon support>100m2/g
HyPer FC 170X70% Platinum on a high surface area carbon support70m2/g
HyPer FC 20050:50 (Atomic Ratio) Platinum Ruthenium70m2/g
TEM image = HyPer FC 140
HyPer FC grades offer higher levels of durability and greater retention of electrochemical performance
TEM image = HyPer FC 150X
HyPer FC grades show improved electrochemical performance and higher ECSA
Fuel Cell ProductsDescriptionBET Surface Area
HyPer WE 100High Surface Area Platinum Black25 - 40m2/g
HyPer WE 150050% Platinum on a conductive carbon support>100m2/g
HyPer WE 500Iridium Black20 - 40m2/g
HyPer WE 520Iridium Oxide45 - 60m2/g
HyPer WE 530High Surface Area Iridium Oxide120 - 150m2/g
HyPer WE 550Iridium Ruthenium Oxide120 - 150 m2/g
HyPer WE supportedContact us to discuss supported iridium anode catalysts

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.

Ames Goldsmith Corporation