@article{ART002605954},
author={LeeSangMin and Lee Jae Ho and Nam Gibeop and Kim Suk Hwan and Kim Jongbok and Roh Jae Seung},
title={Surface shape and pore size change in carbon blacks isothermally oxidized in air atmosphere according to burn-off ratio},
journal={Carbon Letters},
issn={1976-4251},
year={2019},
volume={29},
number={6},
pages={613-623},
doi={10.1007/s42823-019-00061-9}
TY - JOUR
AU - LeeSangMin
AU - Lee Jae Ho
AU - Nam Gibeop
AU - Kim Suk Hwan
AU - Kim Jongbok
AU - Roh Jae Seung
TI - Surface shape and pore size change in carbon blacks isothermally oxidized in air atmosphere according to burn-off ratio
JO - Carbon Letters
PY - 2019
VL - 29
IS - 6
PB - Korean Carbon Society
SP - 613
EP - 623
SN - 1976-4251
AB - The present study examined changes in surface shape and pore size observed in carbon black particles isothermally oxidized in an air atmosphere according to their burn-off ratio. Carbon black materials were fed into a horizontal tubular furnace in an air atmosphere when the inside temperature reached 600 °C. Subsequently, while changing the isothermal oxidation time, carbon black samples with different burn-off ratios were obtained, i.e., 10.5, 20.0, 30.4, 41.0, 49.9, 59.8, 71.1, and 81.0%. The scanning electron microscope analysis revealed that the observed carbon black particles were in the form of aggregated primary particles, and that there was no change in the particle size of these primary particles as the burn-off process proceeded. The latter observation supported the observation that pores were formed in the carbon black samples during the burn-off process. Notably, the Brunauer–Emmett–Teller analysis exhibited hysteresis curves, indicating that the corresponding adsorption isotherms were of IV-type. It was also found that the area of the hysteresis curves increased as the burn-off process proceeded. The specific surface area of the raw carbon black sample was 58.00 m2/g, while that of the 81.0% sample was about 4.1 times the figure at 240.27 m2/g. The total pore volume VT was 0.17 cm3/g for the raw sample, and it was much higher for the 81.0% sample at 0.58 cm3/g. The transmission electron microscope analysis showed that the raw carbon black particles had a spherical shape with a smooth surface, but inner pores were not observed. In the 49.9% sample, pores with a size of about 5 nm were observed inside carbon black particles. Notably, the size of the pores observed in the 81.0% sample was about 20 nm and the large pores were created by the collapsing and merging of the smaller pores by oxidation.
KW - Carbon black Oxidation Active site Surface shape Pore
DO - 10.1007/s42823-019-00061-9
ER -
LeeSangMin, Lee Jae Ho, Nam Gibeop, Kim Suk Hwan, Kim Jongbok and Roh Jae Seung. (2019). Surface shape and pore size change in carbon blacks isothermally oxidized in air atmosphere according to burn-off ratio. Carbon Letters, 29(6), 613-623.
LeeSangMin, Lee Jae Ho, Nam Gibeop, Kim Suk Hwan, Kim Jongbok and Roh Jae Seung. 2019, "Surface shape and pore size change in carbon blacks isothermally oxidized in air atmosphere according to burn-off ratio", Carbon Letters, vol.29, no.6 pp.613-623. Available from: doi:10.1007/s42823-019-00061-9
LeeSangMin, Lee Jae Ho, Nam Gibeop, Kim Suk Hwan, Kim Jongbok, Roh Jae Seung "Surface shape and pore size change in carbon blacks isothermally oxidized in air atmosphere according to burn-off ratio" Carbon Letters 29.6 pp.613-623 (2019) : 613.
LeeSangMin, Lee Jae Ho, Nam Gibeop, Kim Suk Hwan, Kim Jongbok, Roh Jae Seung. Surface shape and pore size change in carbon blacks isothermally oxidized in air atmosphere according to burn-off ratio. 2019; 29(6), 613-623. Available from: doi:10.1007/s42823-019-00061-9
LeeSangMin, Lee Jae Ho, Nam Gibeop, Kim Suk Hwan, Kim Jongbok and Roh Jae Seung. "Surface shape and pore size change in carbon blacks isothermally oxidized in air atmosphere according to burn-off ratio" Carbon Letters 29, no.6 (2019) : 613-623.doi: 10.1007/s42823-019-00061-9
LeeSangMin; Lee Jae Ho; Nam Gibeop; Kim Suk Hwan; Kim Jongbok; Roh Jae Seung. Surface shape and pore size change in carbon blacks isothermally oxidized in air atmosphere according to burn-off ratio. Carbon Letters, 29(6), 613-623. doi: 10.1007/s42823-019-00061-9
LeeSangMin; Lee Jae Ho; Nam Gibeop; Kim Suk Hwan; Kim Jongbok; Roh Jae Seung. Surface shape and pore size change in carbon blacks isothermally oxidized in air atmosphere according to burn-off ratio. Carbon Letters. 2019; 29(6) 613-623. doi: 10.1007/s42823-019-00061-9
LeeSangMin, Lee Jae Ho, Nam Gibeop, Kim Suk Hwan, Kim Jongbok, Roh Jae Seung. Surface shape and pore size change in carbon blacks isothermally oxidized in air atmosphere according to burn-off ratio. 2019; 29(6), 613-623. Available from: doi:10.1007/s42823-019-00061-9
LeeSangMin, Lee Jae Ho, Nam Gibeop, Kim Suk Hwan, Kim Jongbok and Roh Jae Seung. "Surface shape and pore size change in carbon blacks isothermally oxidized in air atmosphere according to burn-off ratio" Carbon Letters 29, no.6 (2019) : 613-623.doi: 10.1007/s42823-019-00061-9