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Palladium Supported on 3D Graphene as an Active Catalyst for Alcohols Electrooxidation

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Journal Article - Open Access

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The University of New Mexico, Advanced Materials Laboratory Albuquerque United States

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In the present study, highly porous 3D-Graphene nanosheets 3D-GNS were synthesized using the Sacrificial Support Method SSMand utilized as a support for palladium Pd nanoparticles. The Pd nanoparticles were deposited using the original Pd-precursor based Soft Alcohol Reduction Method SARM with different alcohols. The obtained materials were comprehensively characterized by X-ray diffraction XRD, transmission electron microscopy TEM, and scanning transmission electron microscopy SEM.Chemically reduced Pd3D-GNS catalysts were then studied for the electrochemical oxidation of ethanol and methanol in alkaline media. Our study shows that combination of SSM and SARM-EtOH fabrication process allowed obtaining materials with a smaller particle size distribution and a higher surface area yielding better utilization of Pd, as well as the highest electrochemical activity and durability, with a peak current density of over 1100 AgPd for ethanol electrooxidation.

Subject Categories:

  • Miscellaneous Materials
  • Electrochemical Energy Storage

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