Structural characteristics of the TCs such as the Brunauer,
Emmett and Teller (BET) specific surface area, Barret, Joyner
and Halenda (BJH) pore volume and average pore diameter, after
degassing at 30 C for 240–480 min under vacuum at 10 lm Hg,
were measured at 196.15 C using a Micromeritics TriStar 3000
porosimeter.