194. The influence of the heating rate on the properties of carbon materials

Nanostructured Carbon Xerogels by Super-Fast Carbonization

“…Higher shrinkage of coke at higher σ was also reported without in-depth discussion about pore size and pore volume. 23 Marcilla et al 24,25 showed that low σ ≈ 5 K min −1 in the pyrolysis step (from 548 to 673 K) slightly affects the porosity development of chars from almond shells when d̅ p ≈ 1.13 mm, while high σ (flash) caused an increase in Φ from 1173 to 1217 cm 2 g −1 having two activation times of 4 and 5 h, respectively. In the latter, inevitably, the difference in Φ can also be attributed to the different activation times rather than solely high σ.…”

“…In general, the influence of σ on the final properties of porous carbon has rarely been reported in the literature. − Inagaki et al studied the effect of σ during carbonization on graphitization of carbon films derived from commercially available aromatic polyimide films. Higher shrinkage of coke at higher σ was also reported without in-depth discussion about pore size and pore volume .…”

“…In general, the influence of σ on the final properties of porous carbon has rarely been reported in the literature. − Inagaki et al studied the effect of σ during carbonization on graphitization of carbon films derived from commercially available aromatic polyimide films. Higher shrinkage of coke at higher σ was also reported without in-depth discussion about pore size and pore volume . Marcilla et al , showed that low σ ≈ 5 K min –1 in the pyrolysis step (from 548 to 673 K) slightly affects the porosity development of chars from almond shells when d̅ p ≈ 1.13 mm, while high σ (flash) caused an increase in Φ from 1173 to 1217 cm 2 g –1 having two activation times of 4 and 5 h, respectively.…”