화학공학소재연구정보센터
Chemistry Letters, Vol.39, No.3, 226-227, 2010
Synthesis of Lipophilic Gold Nanosheets by Using Reducing Stabilizers and Their Reversible Transformation between Golden Solid
4,5-Dialkylated o-phenylenediamine with oligo(ethylene glycol) units is developed as a stabilizer with reducing property. It reduces chloroauric acid in water, giving lipophilic gold nanosheets whose surface is passivated by the quinoid-form ligands generated in situ. These nanosheets show brilliant golden luster in the solid state, whereas they are reversibly dispersible in organic media.