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. 2021 Sep 5;14(17):5082. doi: 10.3390/ma14175082

Figure 6.

Figure 6

Updated classification of hysteresis loops by IUPAC 2015 [48]. The Type H1 loop indicated for uniform mesopores materiarls (e.g., MCM-41, MCM-48, SBA-15), the Type H2(a) loop indicated for pore-blocking with narrow neck sizes (e.g., vycor., SBA-16 and KIT-5 silicas), the Type H2(b) loop indicated for pore-blocking with larger neck sizes (e.g., MCF), the Type H3 loop indicated for non-rigid aggregates of plate-like particles (e.g., certain clays), and the Type H4 loop indicated for aggregated crystals of zeolites and micro-mesoporous carbons. The Type H5 hysteresis loop indicated for plugged SBA-15 materials.