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DOE OSTI · 1778737

Intermetallic PtCo Catalysts with Enhanced Performance and Stability [Slides]

Wang, Chenyu
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Abstract

Pt-based catalysts need systematic modifications to be adapted to different applications (LDV or HDV). L1 0 -CoPt particles have been demonstrated as highly active and durable cathode materials for fuel cells. Colloidal synthesis can generate catalysts with highly uniform particles size but the removal of surfactants is challenging. Acid leaching warrants a Pt shell with certain thickness, which mitigates the Co leaching. Controlling the size of L1 0 -CoPt particles is a robust method to alter their catalytic behaviours and tailor the function of catalysts. Modifying the carbon features (e.g. porosity and graphitization) is an effective method to regulate the performance and stability of catalysts to adapt the catalysts to different applications.

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30 DIRECT ENERGY CONVERSION36 MATERIALS SCIENCEEnergy SciencesMaterial Science

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Wang, Chenyu. 2021-04-16. Intermetallic PtCo Catalysts with Enhanced Performance and Stability [Slides]. https://doi.org/10.2172/1778737

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