Revealing the Distribution of the Atoms within Individual Bimetallic Catalyst Nanoparticles.
- Resource Type
- Article
- Authors
- Felfer, Peter; Benndorf, Paul; Masters, Anthony; Maschmeyer, Thomas; Cairney, Julie M.
- Source
- Angewandte Chemie. Oct2014, Vol. 126 Issue 42, p11372-11375. 4p.
- Subject
- *BIMETALLIC catalysts
*NANOPARTICLE synthesis
*ATOM-probe tomography
*REACTIVITY (Chemistry)
*GAUSSIAN distribution
- Language
- ISSN
- 0044-8249
To be able to correlate the catalytic properties of nanoparticles with their structure, detailed knowledge about their make-up on the atomic level is required. Herein, we demonstrate how atom-probe tomography (APT) can be used to quantitatively determine the three-dimensional distribution of atoms within a Au@Ag nanoparticle with near-atomic resolution. We reveal that the elements are not evenly distributed across the surface and that this distribution is related to the surface morphology and residues from the particle synthesis. [ABSTRACT FROM AUTHOR]