Mesoporous Platinum Prepared by Electrodeposition for Ultralow Loading Proton Exchange Membrane Fuel Cells

The porosity and utilization of platinum catalysts have a direct impact on their performance within proton exchange membrane fuel cells. It is desirable to identify methods that can prepare these catalysts with the desired features, and that can be widely implemented using existing and industrially...

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Bibliographic Details
Published in:Scientific reports 2019-03, Vol.9 (1), p.4161-4161, Article 4161
Main Authors: Paul, Michael T. Y., Gates, Byron D.
Format: Article
Language:English
Subjects:
639/301/299/1013
639/301/299/893
639/301/357/537
639/638/161/886
639/638/77/886
Automobile industry
Catalysts
Electrodes
Electron microscopy
Fuel cells
Fuel technology
Humanities and Social Sciences
Membranes
multidisciplinary
Platinum
Porosity
Product development
Science
Science (multidisciplinary)
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Summary:The porosity and utilization of platinum catalysts have a direct impact on their performance within proton exchange membrane fuel cells. It is desirable to identify methods that can prepare these catalysts with the desired features, and that can be widely implemented using existing and industrially scalable techniques. Through the use of electrodeposition processes, fuel cell testing, and electron microscopy analyses before and after fuel cell testing, we report the preparation and performance of mesoporous platinum catalysts for proton exchange membrane fuel cells. We found that these mesoporous platinum catalysts can be prepared in sufficient quantities through techniques that also enable their direct incorporation into membrane electrode assemblies. We also determined that the mesoporous catalysts achieved a high porosity, which was retained after assembly and utilization within fuel cells. In addition, these mesoporous platinum catalysts exhibited an improved platinum mass specific power over catalysts prepared from commercially available platinum nanocatalysts.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-019-38855-6