Synthesis of Shape-Anisotropic Nanomaterials using Spontaneous Galvanic Displacement Reactions: Abstract No. INOR-209

Research output: Contribution to conferencePaper

Abstract

The direct synthesis of nanostructures using wet chemical reduction methods has had a major impact on catalysis and materials design. However, no mechanism has yet been reported that explicitly provides growth parameters for shapes and sizes as a function of desired metals, making it difficult to directly synthesize shaped particles from specific metals. There have been reports in the literatureusing this method to obtain core-shell, porous cage-like and irregular structures, however only one report proposing a mechanism of the displacement process exists, which does not explain surface and bulk morphology changes as a function of reaction condition. Here, we demonstrate the use of small angle x-ray scattering (SAXS), and microscopy to study the Ag-to-Pt displacement process ofnanoparticles, nanowires and nanoplates at known intervals throughout the reaction. Obtaining a fundamental understanding of the displacement process will allow us to tune composition, morphology, and thus electronic properties of novel materials.
Original languageAmerican English
StatePublished - 2013
EventAmerican Chemical Society. 245th ACS National Meeting - New Orleans, Louisiana
Duration: 7 Apr 201311 Apr 2013

Conference

ConferenceAmerican Chemical Society. 245th ACS National Meeting
CityNew Orleans, Louisiana
Period7/04/1311/04/13

NREL Publication Number

  • NREL/CP-5600-58869

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