Pseudocapacitive sodium storage in a new brand foveolate TiO2@MoSe2 nanocomposite for high-performance Na-ion hybrid capacitors

A new kind of foveolate TiO 2 where each TiO 2 sphere is embedded in a stable TiO 2 framework is prepared and used as a substrate to realize the growth of MoSe 2 with stable electrochemical performance.