Tailored nanoscale interface in a hierarchical carbon nanotube supported MoS₂@MoO₂-C electrode toward high performance sodium ion storage

A MoS2/MoO2 heterointerface is created, with MoO2 nanocrystals anchored on MoS2 nanosheets, assisted by an N-doped carbon protecting layer, on CNTs. The electrode has a high specific capacity of ∼700 mA h g−1 at 0.2 A g−1, excellent cycling stability and rate capability.