Synthesis and Characterizations of Metal Nanostructures for Application in Direct Alcohol Fuel Cells

Author(s)	Sahil Dahiya
Country	India
Abstract	This study reports the successful synthesis of Au@Pd bipyramidal core-shell nanoparticles with varying Pd shell thicknesses using a seed-mediated chemical growth method. The nanoparticles exhibit 5-fold twins with stacking faults, inducing tensile strain in the Pd shells, which decreases as shell thickness increases. Microstrain arising from defects further influences structural properties. The ultrathin Pd-shell nanoparticles demonstrate exceptional catalytic performance, achieving mass and specific activities 23.26 and 10 times higher than commercial Pd/C, respectively, along with superior durability in ethanol oxidation reactions (EOR). The findings highlight the importance of shell thickness tuning for designing highly efficient core-shell catalysts for fuel cell applications.
Keywords	Au@Pd, Pd-shell nanoparticles, TEM Images, HRTEM.
Published In	Volume 5, Issue 10, October 2024
Published On	2024-10-04

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