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Dynalyst® 20SR1 - 20% Pt/C electrocatalyst has excellent electrochemical performance at low precious metal loadings in MEA. A loading of 0.1 - 0.3 mg Pt/cm2 in the electrode layer is recommended to achieve optimum performance and Pt utilization.
Cabot’s Dynalyst® Electrocatalysts
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SEM image of Dynalyst® electrocatalyst particle
| Cabot’s Dynalyst® family of fuel cell (FC) electrocatalysts are designed for use in performance driven applications ranging from portable to automotive Polymer Electrolyte Membrane (PEM) fuel cells and delivering high performance at a range of operating conditions. Dynalyst® electrocatalysts combine high performance with excellent platinum utilization due to the unique morphology of electrocatalyst powder. Cabot’s Dynalyst® electrocatalysts are designed for low platinum loading Membrane Electrode Assemblies (MEA) for high performance hydrogen-air and direct methanol fuel cells.
Key Properties and Applications
- High Electrochemical Performance
- Controlled Aggregate Size
- Controlled Macro and Microporosity
- Compatible with Advanced CCM and MEA Fabrication Techniques
- Manufactured by a Versatile High Volume Spray –Based Platform
Cabot’s Dynalyst® family of fuel cell (FC) electrocatalysts are designed for use in various applications:
- Hydrogen-Air PEM FC
- Direct Methanol FC (cathode)
- High Temperature Fuel Cells
- Phosphoric Acid Fuel Cells
- Alkaline Fuel Cells
Dynalyst® Manufacturing Process
Cabot’s Dynalyst® electrocatalysts are manufactured by a proprietary, spray-based powder processing technique. The spray-based process entails 3-stages, atomization, processing and product collection combined in a single unit operation that affords superior consistency and product reproducibility. In the processing step, aqueous precursor droplets, entrained in a gas stream, are processed at a well-controlled elevated temperature, for a predetermined time. In the case of supported Pt/C electrocatalysts, a soluble Pt species controllably decomposes to form Pt nanocrystallites on the surface of the carbon blacks.
Cabot Advanced Fuel Cell Development
Cabot Fuel Cells has a range of next-generation fuel cell electrocatalysts and other materials for PEM and DMFC systems under development. These electrocatalysts, as well as other key products and capabilities, are selectively available to leading customers under special arrangement. Cabot works intimately with a limited number of customers to assist them in developing genuine competitive advantage through access to the latest advances in DMFC and PEM materials and component technologies. If you would like to talk to Cabot about the potential of an Advanced Development relationship for your company, please click here to find out more. |
