PtPd Hybrid Composite Catalysts as Cathodes for Proton Exchange Membrane Fuel Cells

In this work, PtPd hybrid cathodic catalysts were prepared for a proton exchange membrane fuel cell (PEMFC) application by two different strategies. The first strategy was the physical mixing of bimetallic PtPd onto partially reduced graphene oxide (PtPd/rGO) and PtPd onto multi-walled carbon nanotu...

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Bibliographic Details
Published in:Energies (Basel) 2020-01, Vol.13 (2), p.316
Main Authors: Rivera-Lugo, Yazmín Yorely, Pérez-Muñoz, Kevin Isaac, Trujillo-Navarrete, Balter, Silva-Carrillo, Carolina, Reynoso-Soto, Edgar Alonso, Calva Yañez, Julio Cesar, Lin, Shui Wai, Flores-Hernández, José Roberto, Félix-Navarro, Rosa María
Format: Article
Language:English
Subjects:
Aqueous solutions
Bimetals
Carbon
Catalysts
Cathodes
Chemical reduction
Durability
Electrodes
Electrolytes
Energy
Fuel cells
Fuel technology
Graphene
Hybrid composites
Interlayers
Microemulsions
Microscopy
mwcnt
Nanocomposites
Nanomaterials
Nanoparticles
Nanotechnology
orr
Oxygen reduction reactions
pemfc
Proton exchange membrane fuel cells
ptpd
Spectrum analysis
supported electrocatalyst
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Summary:In this work, PtPd hybrid cathodic catalysts were prepared for a proton exchange membrane fuel cell (PEMFC) application by two different strategies. The first strategy was the physical mixing of bimetallic PtPd onto partially reduced graphene oxide (PtPd/rGO) and PtPd onto multi-walled carbon nanotubes (PtPd/MWCNT); (PtPd/rGO) + (PtPd/MWCNT). The second strategy was physical mixing of both carbonaceous supports before the PtPd deposition to form PtPd/(rGO:MWCNT). Our experimental results revealed that the PtPd nanomaterial prepared over a mixture of both carbonaceous supports had better oxygen reduction reaction (ORR) and PEMFC performances than the individually prepared catalysts. The insertion of MWCNT between rGO sheets prevented their stacking. This promoted the diffusion of oxygen molecules through the interlayer spacing, enhancing the ORR’s electrocatalytic activity. The durability test demonstrated that the hybrid supporting material dramatically improved the catalyst’s stability even after 3000 reaction cycles. This highlighted an increase greater than 100% for hybrid nanocomposites in their electrocatalytic activity as compared with the PtPd/rGO nanocomposite.
ISSN:1996-1073
1996-1073
DOI:10.3390/en13020316