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Updated: Mar 18, 2026
Author Spotlight: Designing Sustainable Nanomaterials for Advancing Synthesis and Element Mixing
Published on: March 15, 2024
Alloying Behavior of Self-Assembled Noble Metal Nanoparticles
Laura Kühn1, Anne-Kristin Herrmann1, Bogdan Rutkowski2
1Physical Chemistry, TU Dresden, Bergstr. 66b, 01069, Dresden, Germany.
Abstract:
The atomic redistribution processes occurring in multiparticle nanostructures are hardly understood. To obtain a more detailed insight, we applied high-resolution microscopic, diffraction and spectroscopic characterization techniques to investigate the fine structure and elemental distribution of various bimetallic aerogels with 1:1 compositions, prepared by self-assembly of single monometallic nanoparticles. The system Au-Ag exhibited a complete alloy formation, whereas Pt-Pd aerogels formed a Pd-based network with embedded Pt particles. The assembly of Au and Pd nanoparticles resulted in a Pd-shell formation around the Au particles. This work confirms that bimetallic aerogels are subject to reorganization processes during their gel formation.
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