Figure 2: Atomic arrangements and structural characterization of the superlattice nanosheets. | Nature Communications

Figure 2: Atomic arrangements and structural characterization of the superlattice nanosheets.

From: Magnetocaloric effects in a freestanding and flexible graphene-based superlattice synthesized with a spatially confined reaction

Figure 2

(a) V K-edge extended XAFS oscillation function k3χ(k) and (b) Fourier transforms of k3χ(k) for the V–O framework in superlattice nanosheets and VO2(B), respectively. (c,d) Representative atomic models of superlattice nanosheets extracted from the quantitative fitting results of the V–O and V–V bonds. (e) The Raman spectra for the obtained superlattice and starting RGO, respectively. (f) Experimental XRD patterns of the superlattice nanosheets and VO2(B). The standard pattern of VO2(B) in JCPDS card no. 81-2392 and the calculated XRD pattern of the constructed model structure of superlattice nanosheets are also shown. (g) The XPS spectra of the obtained superlattice.

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