Yolk-Shell Polystyrene@Microporous Organic Network: A Smart Template with Thermally Disassemblable Yolk To Engineer Hollow MoS₂/C Composites for High-Performance Supercapacitors.

ABSTRACT: Yolk-shell-type polystyrene@microporous organic network (Y-PS@MON) materials were prepared by the Sonogashira coupling of tetra(4-ethynylphenyl)methane and 1,4-diiodobenzene on the surface of PS@SiO₂ and by the etching of SiO₂. The diameter of PS yolk spheres and the thickness of MON shells were 150 and ∼10 nm, respectively. The thickness of the void space between the PS yolk and the MON shell was ∼30 nm. Y-PS@MONs were used as templates for the synthesis of MoS₂/C composite materials. Because of the microporosity of the MON shells and the void space between the yolk and the shell, MoS₂ precursor compounds were efficiently incorporated into Y-PS@MONs. The heat treatment under argon resulted in the formation of hollow MoS₂/C composites.

SUBMITTER: Lee H 

PROVIDER: S-EPMC6645370 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature