Palladium Supported on 3D Graphene as an Active Catalyst for Alcohols Electrooxidation. Issue 12 (28th August 2015)

• Record Type: Journal Article
• Authors: Serov, Alexey; Andersen, Nalin I.; Kabir, Sadia A.; Roy, Aaron; Asset, Tristan; Chatenet, Marian; Maillard, Frederic; Atanassov, Plamen
• Is Part Of: Journal of the Electrochemical Society. Volume 162:Issue 12(2015)
• Page Start: F1305
• Page End: F1309
• Publication Date: 2015-08-28
• Subjects: 3D graphene -- Direct Liquid Fed Fuel Cells (DLFFC) -- electrocatalytic oxidation of alcohols -- palladium-based catalysts; Electrochemistry -- Periodicals; 541.3705
• DOI: 10.1149/2.0301512jes
• Languages: English
• ISSNs: 0013-4651

Abstract

Abstract : In the present study, highly porous 3D-Graphene nanosheets (3D-GNS) were synthesized using the Sacrificial Support Method (SSM) and 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 Pd/3D-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 A/gPd for ethanol electrooxidation.