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Platinum-Based Fuel Cell Catalysts

This platinum-based catalyst series is engineered for proton exchange membrane fuel cell (PEMFC) cathode applications. The portfolio covers C700 (Pt/C on partially graphitized carbon), C700M (Pt/C on mesoporous carbon) and C800M (PtCo/C on mesoporous carbon), enabling customers to select catalyst systems according to activity, durability, support structure and precious-metal utilization requirements.

Through rational carbon-support design and controlled nanoparticle dispersion, the catalysts provide a balanced combination of electrochemically active surface area, oxygen reduction reaction (ORR) kinetics and durability under dynamic potential operation. The series supports both performance-driven MEA development and cost-oriented scale-up, while allowing Pt loading customization for different electrode designs.

Key features

Engineered Carbon Supports: Partially graphitized carbon improves structural stability, while mesoporous carbon enhances mass transport and nanoparticle accessibility.

Uniform Pt/PtCo Nanoparticle Dispersion: Pt-based nanoparticles are homogeneously distributed on carbon supports, with typical particle sizes of 3.2 ± 0.5 nm for C700/C700M and 4.0 ± 0.5 nm for C800M.

Durability under Dynamic Operation: After cathode electrocatalyst durability testing (0.6 V/3 s to 0.95 V/3 s, 30k cycles), MA and ECSA loss are controlled within ≤30%.

Process Scalability and Customization: Single-batch capacity ≥100 g and adjustable Pt loading support catalyst screening, MEA validation and scale-up manufacturing.

Technical Specifications

Parameter

C700

C700M

C800M

Category

Pt/C

Pt/MPC

PtCo/MPC

Support Type

Partially Graphitized Carbon

Mesoporous Carbon

Pt Loading (wt.%)

58 ± 1

50 ± 1

46 ± 1

Nanoparticle Size (nm)

3.2 ± 0.5

4.0 ± 0.5

Mass Activity

>0.16 A/mgPt @ 0.9 V

>0.3 A/mgPt @ 0.9 V

>0.5 A/mgPt @ 0.9 V

Electrochemically Active Surface Area

>55 m²/g

>60 m²/g

>50 m²/g

Cathode Electrocatalyst Durability (0.6 V/3 s - 0.95 V/3 s, 30k)

MA & ECSA loss ≤30%; performance loss ≤15 mV @ 0.8 A/cm², ≤30 mV @ 2 A/cm²

MA & ECSA loss ≤30%; performance loss ≤30 mV @ 0.8 A/cm², ≤50 mV @ 2 A/cm²

Platinum-Based Fuel Cell Catalysts