WS₂ Closed Nanoboxes Synthesized by Spray Pyrolysis

Abstract

A novel type of inorganic fullerene-like nanoparticle has been synthesized, presenting the unique structure of a closed, nested nanobox. These nanoparticles consist of WS2, and are obtained by spray pyrolysis of (NH4)2WS4 solutions at high temperature. The nanoparticles exhibit the shoebox shape of a rectangular parallelepiped and possess a hollow core surrounded by walls made up of stacked WS2 layers.