ChemInform Abstract: Promoting 2D Growth in Colloidal Transition Metal Sulfide Semiconductor Nanostructures via Halide Ions.

Abstract

Promoting 2D Growth in Colloidal Transition Metal Sulfide SemiconductorNanostructures via Halide Ions. -Halide ions play a decisive role in determining the morphology of Ni 9S8 nanostructures, and the use of sufficiently large molar equivalents of halides results in the formation of nanoplates that exhibit an unusual cross--like structure filled with steplike edges. These Ni9S8 nanoplates are potential electrocatalysts for dye-sensitized solar cells or hydrogen evolution from water. The use of halides in promoting sheetlike growth is also extended to Cu 2S, where ultrathin triangular nanoplates are produced. Additionally, monodisperse spheres, disks, and plates of Cu2S are obtained by simply increasing the amount of Clpresent in the reaction mixture. -(WU, W.-Y.; CHAKRABORTTY, S.; CHANG, C. K. L.; GUCHHAIT, A.; LIN*, M.; CHAN, Y.; Chem. Mater. 26 (2014) 21, 6120-6126, http://dx.doi.org/10.1021/cm502281e ; Inst. Mater. Res. Eng., Singapore 117602, Singapore; Eng.) -W. Pewestorf 03-220