Abstract
AbstractIn this study, spark discharges are generated in liquid heptane that is in contact with an immiscible solution of silver nitrate. The results demonstrate that the discharges produced at 22 kV voltage amplitude and 500 ns pulse width change the color of both liquids and lead to the formation of nanoparticles. Most particles collected from heptane are nanocomposites of Ag nanoparticles (<10 nm) in the hydrocarbon network. Meanwhile, the material collected from the silver nitrate solution is Ag nanoparticles (10–150 nm of diameter). At shorter pulse width (100 ns), the discharges generate similar materials in both liquids; however, the size distribution of these materials is smaller. Finally, a scenario of particle synthesis is proposed and discussed.
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