In Situ Chemical Oxidation of Ultrasmall MoOx Nanoparticles in Suspensions

Figure 1

Schematic of microwave synthesis and chemical oxidation of MoO_𝑥 nanoparticles. A mixture of molybdenum oxide bis(acetylacetonate) in n-butanol was placed in a microwave reactor (CEM Discover) and heated using 2.45 GHz radiation. When heated at 200°C for 15 minutes, MoAcAc reacted, forming a brown suspension of nanoparticles. Chemical oxidation of the nanoparticle suspension with 0.1 M H₂O₂ for 24 hours yielded a blue suspension of nanoparticles.