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High-Performance Platinum-Ceria Catalyst for Fuel Cells

The Platinum-Ceria (Pt/Ce) catalyst, developed by Nicholas DiPreta, demonstrates exceptional performance in fuel cell applications. This non-pyrophoric catalyst maintains high activity across a broad temperature range and exhibits outstanding stability, even in the presence of oxygen and moisture. Studies indicate minimal degradation over 300 hours of continuous operation, surpassing the durability of Cu-Zn-Al catalysts. Additionally, this catalyst shows resistance to up to 10 ppm of sulfur compounds, making it ideal for various applications. Available in powder and pellet forms, it costs approximately $10/g.

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High-Performance Platinum-Ceria Catalyst for Fuel Cells

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  1. Platinum Ceria WGS catalyst Nicholas DiPreta

  2. PGM Catalysts • Non pyrophoric- does not deactivate in presence of oxygen or water- in fact, studies have shown that 1% oxygen presence decrease deactivation • high activity over a wide range of temperatures • excellent stability at high temperatures • Resistance to sulfur containing gases to about 10 ppm H₂S

  3. Temperature Range Higher CO conversion percentage than CuZnO catalyst over wide range of temperatures (S. Swartz)

  4. Life Time Fuelcellmaterials.com reviewed next tech’s high temperature Pt/Ce catalyst and observed little loss in CO conversion % over 300 hrs continuous run time @ 400 C.

  5. Life Time Very little degredation over time. Little to no regeneration period needed. As opposed to Cu-Zn-Al which reduce to about ½ co conversion % within 10 hrs (w/o regeneration) [Kim et al. 2005]

  6. Cost/ Forms • Regardless of form, the cost for Pt/ceria based catalyst is about 10$/g. • Comes in powder and pellet form from nextechmaterials.com • Only 100-150 mg needed per one test according to S. Swartz of Nextech materials

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