fig2

Figure 2. (A) XRD patterns of Si/C, Si/CNFs, and Si/CNFs/C composites; (B) TGA curves of Si/C, Si/CNFs, and Si/CNFs/C composites; (C) N₂ adsorption-desorption isotherms of the Si/CNFs/C composite; (D) Raman spectra of Si/C, Si/CNFs and Si/CNFs/C composites; (E) C 1s and (F) Si 2p XPS spectrum of the Si/CNFs/C. CNFs: Carbon nanofibers; XRD: X-ray diffraction; TGA: thermogravimetric analysis; XPS: X-ray photoelectron spectroscopy.