Figure 4 | Scientific Reports

Figure 4

From: Controlled synthesis of conjugated polycarbazole polymers via structure tuning for gas storage and separation applications

Figure 4

(a) Nitrogen sorption isotherms measured at 77 K for N4CMP-1–5, the isotherms of N4CMP-1–4 are shifted vertically by 800, 600, 400 and 200 cm3 g−1 for better visibility, respectively; (b) pore size distributions calculated using nonlocal density functional theory (NLDFT) method, for clarity, the curves of N4CMP-1–4 are shifted vertically by 4, 3, 2 and 1 cm3 g−1, respectively.

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