Research Article

Effects of Nitrogen-Doping or Alumina Films on Graphene as Anode Materials of Lithium-Ion Batteries Verified by In Situ XRD

Figure 4

XPS spectra of (a) N-5 as well as N-6 for N-doped graphene and (b) Al 2P for Al2O3/graphene.
(a)
(b)