Hollow Nanostructures of Molybdenum Sulfides for Electrochemical Energy Storage and Conversion

Hollow nanostructures of molybdenum sulfides (MoSx, x = 2 or 3) hold great promise as electrode materials for various energy-related systems owing to their attractive electrochemical properties. Recent advances in the synthesis of hollow MoSx nanostructures with tailored morphology and composition are introduced, along with their applications in electrochemical energy storage and conversion, including lithium-ion batteries and the electrocatalytic hydrogen-evolution reaction. The importance of structural and compositional engineering on the electrochemical performance of hollow MoSx nanostructures is highlighted. Specifically, bare hollow MoSx structures, including hollow spheres and hollow polyhedral nanostructures, hollow MoSx-carbon composite structures, and hollow transition-metal-incorporated MoSx structures are discussed. Finally, a perspective is provided on current challenges and future research directions in this area.