In nanoparticles, spatial confinement affects the electronic structure and their size permits geometric formations with variations, distortions, and symmetries that are not possible in macroscopic systems. This complexity is even greater in multimetallic systems, which allow different types of atomic arrangements and electronic structures. Quantifying the chemical structure of these nanoparticles is essential to understand new phenomena. “Using transmission and scanning electron microscopy combined with X-ray fluorescence spectroscopy made it possible to investigate bimetallic nanoparticles individually, which in turn allowed us to answer the questions posed in our research,” said study supervisor Varlei Rodrigues. “We decided to use the CNPEM facilities because of their infrastructure, which has transmission electron microscopes with the technical characteristics required for measurements at the nano scale,” explains researcher Murilo Moreira.
Advisor: Varlei Rodrigues | Facility: LNNano/LMF, LME – Titan Themis and TEMFEG 2100F