fig2

Figure 2. Microcrystalline and surface chemical structure characterization. (A) XRD patterns of CAC, CAC-4 and CAC-24. (B) Raman spectra of CAC, CAC-4 and CAC-24. (C) The values of d₀₀₂ and A_D/A_G of CAC-x. (D) XPS overall scans of CAC, CAC-4 and CAC-24. (E) Deconvoluted C1s spectra of CAC-24. (F) The content of C-O of CAC-x.