Figure 3 | Scientific Reports

Figure 3

From: Interlayer catalytic exfoliation realizing scalable production of large-size pristine few-layer graphene

Figure 3

Spectrum characterizations of high quality FLG.

(a) IR spectra of graphite and the FLG. The absence of functional groups includes in the range (500–4,000 cm−1). (b) XPS spectra of the FLG. The inset is comparison C 1s spectra of graphite and the FLG, showing the perfect structure of the resulting FLG. (c) Raman spectra of graphite and the FLG, showing the low peak intensity ratios of D to G. (d) XRD spectra of graphite and FLG, displaying well consistent peak positions.

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