Laminar-protuberant like p-FeS2 rooted in mesoporous carbon sheets as high capacity anode for Na-ion batteries

A NiS2/C composite as an innovative anode material for sodium-ion batteries: ex situ XANES and EXAFS studies to investigate the sodium storage mechanism

“…This also points towards the synergistic effect caused by the involvement of mesoporous carbon with polycrystalline Ni 2 S. This composite structure compensates for volume change with the increase in the number of cycles due to which Na + ion diffusion is improved for better cycling performance. 54…”

“…This also points towards the synergistic effect caused by the involvement of mesoporous carbon with polycrystalline Ni 2 S. This composite structure compensates for volume change with the increase in the number of cycles due to which Na + ion diffusion is improved for better cycling performance. 54 The reason for capacity fading is further investigated by performing EIS studies of the NiS 2 /C composite, as-obtained and after 100 cycles (Fig. 5a).…”