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. 2021 Feb 2;11(2):377. doi: 10.3390/nano11020377

Table 2.

The summary of the BET specific area of Fe-N/C-1:2:4, Fe-N/C-1:4:4, Fe-N/C-1:8:4, and Fe-N/C-1:16:4.

Micropore Area
(m2·g−1)
External Surface Area
(m2·g−1)
BET Surface Area
(m2·g−1)
Fe-N/C-1:2:4 79.4 272.9 352.3
Fe-N/C-1:4:4 22.5 174.9 197.4
Fe-N/C-1:8:4 9.7 63.9 73.6
Fe-N/C-1:16:4 43.7 194.2 237.9