Figure 5.
High-resolution X-ray photoelectron spectra for C1s, N1s, and O1s of representative samples: (a) C1s of GF_750_D_1D, (b) O1s of GF_750_D_1D, (c) N1s of GF_750_D_1D, (d) C1s of GF_750_W_3D, (e) O1s of GF_750_W_3D and (f) N1s of GF_750_W_3D.
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