Rapid synthesis of small silver nanocubes by mediating polyol reduction with a trace amount of sodium sulfide or sodium hydrosulfide

This Letter describes the fastest route to 25-45 nm monodispersed silver nanocubes rapidly and routinely produced on relatively large scales. By adding a trace amount of sodium sulfide (Na2S) or sodium hydrosulfide (NaHS) to the conventional polyol synthesis, the reaction time was significantly shortened to 3-8 min.■