Rational design of double-shelled Cu2MoS4@N-doped carbon hierarchical nanoboxes toward fast and stable sodium-ion batteries

Double-shelled Cu 2 MoS 4 @NC nanoboxes, composed of an outer shell of N-doped carbon supported on the inner shell of hierarchical Cu 2 MoS 4 nanosheets, are synthesized by a delicate template-based strategy and exhibit enhanced sodium storage performance.