Universal Sulfide-Assisted Synthesis of M-Ag Heterodimers (M = Pd, Au, Pt) as Efficient Platforms for Fabricating Metal-Semiconductor Heteronanostructures

作者：Lee Su Un; Hong Jong Wook; Choi Sang Il; Han Sang Woo^*

来源：Journal of the American Chemical Society, 2014, 136(14): 5221-5224.

DOI：10.1021/ja500552p

We report a universal sulfide-assisted synthesis strategy to prepare dumbbell-like M-Ag heterodimers (M = Pd, Au, Pt). Sulfide ions can give fine control over the reaction kinetics of Ag precursors, resulting in the anisotropic overgrowth of Ag to realize the dumbbell-like heterodimers irrespective of the surface facets or components of the M domain. The M-Ag heterodimers were facilely transformed to M-Ag2S heterodimers via a simple sulfidation reaction. This study provides a versatile approach to realizing not only metal-metal heterodimers but also semiconductor-metal heterodimers and will pave the way for designing heteronanostructures with unprecedented morphologies and functions.

• 出版日期2014-4-9