Description:
<p>Closed WS<sub>2</sub> nanoboxes were formed by topotactic sulfidization of a WO<sub>3</sub>/WO<sub>3</sub>·⅓H<sub>2</sub>O intergrowth phase. The box-like morphology can be traced back to a topotactic dehydration reaction of the precursor followed by an epitactic induction of intermediate hexagonal WO<sub>3</sub>.</p>