Fig. 5: Structure and composition characterization of the as-synthesized TMN MLHSs.

a–c HAADF and EDS mapping images of WN MLHSs. d–f HAADF and EDS mapping images of TiN MLHSs. g–i HAADF and EDS mapping images of VN MLHSs. j–l HAADF and EDS mapping images of NbN MLHSs. m–p N2 adsorption and desorption data of the TMN MLHSs. Scale bars are 200 nm. Source data are provided as a Source Data file.