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 language | American English |
---|---|
State | Published - 2013 |
Event | American Chemical Society. 245th ACS National Meeting - New Orleans, Louisiana Duration: 7 Apr 2013 → 11 Apr 2013 |
Conference
Conference | American Chemical Society. 245th ACS National Meeting |
---|---|
City | New Orleans, Louisiana |
Period | 7/04/13 → 11/04/13 |
NREL Publication Number
- NREL/CP-5600-58869