Revealing the composition-dependent structural evolution fundamentals of bimetallic nanoparticles through an inter-particle alloying reaction
Yingzheng Lin, Yitao Cao, Qiaofeng Yao, Jianping Xie
Abstract
= 40-43) NCs, with the increase of the Au/Ag atomic ratio in the NC composition. In addition, leveraging on real-time electrospray ionization mass spectrometry (ESI-MS), we reveal the different inter-cluster reaction mechanisms for the alloying process in the sub-3-nm regime, including partial decomposition-reconstruction and metal exchange reactions. The molecular-level inter-cluster reaction demonstrated in this study provides a fine chemistry to customize the composition and structure of bimetallic NCs in their full alloy composition spectrum, which will greatly increase the acceptance of bimetallic NCs in both basic and applied research.
Topics & Concepts
Bimetallic stripNanoparticleParticle (ecology)Materials scienceNanotechnologyComposition (language)Chemical physicsChemistryMetallurgyMetalBiologyLinguisticsPhilosophyEcologyNanocluster Synthesis and ApplicationsGold and Silver Nanoparticles Synthesis and ApplicationsQuantum Dots Synthesis And Properties