Fig. 1

Comparison of the inputs and by-products involved in metal sulfide nanoparticles syntheses. Using traditional precursors (a), and using the ionic liquid precursor described in this work (b). The inset shows a photograph of OLAHS at 35 °C. ‘M’ and ‘S’ is short for ‘metal’ and ‘sulfur’, respectively. MxSy denotes a metal sulfide compound with an M/S mole ratio of x/y