A kinetic evaluation of hydrogen oxidation over gold has been studied widely and used in many fields nearly a century ago by Bone and Wheeler. The different reaction was studied over a series of silicon and silica-supported Gold Nanoparticles. Here we will present a synthesis method that can control the shape and size of plasmonic AuNPs in water and under ambient conditions by using preformed propargylamine-passivated Silicon Nanoparticles (SiNPs) as the catalyst.<br/>As part of the study, UV-visible, TEM, and SEM (EDX and EDS) techniques were used to identify the morphology evolution, size, and the percentage of each element within newly formed AuNPs. A qualitative-quantitative analysis was also conducted on the percentages of silicon, gold, and other precursors in these gold nanomaterials.<br/>We will present the growth of AuNPs monitored in the reaction. Demonstrate that the changing reaction time, halide ion-mediated (Cl-, Br-, or I-), concentration of precursors, solvent, temperature, and amounts of the catalyst all affect the shape and size of gold nanoparticles.

Synthesis of varying shape and size plasmonic gold nanoparticles (AuNPs) catalyzed by preformed silicon nanoparticles (SiNPs)

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