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Table 3 The elemental composition of samples

From: Functionalization of Petroleum Coke-Derived Carbon for Synergistically Enhanced Capacitive Performance

Samples Element content (%)
C% O% N%
PCAC 91.75 6.66 1.22
PCHO 78.05 19.09 1.13
PCNC 83.93 13.95 1.45