2019, Vol.29, No.6

Preparation and electrochemical capacitive properties of C–MnO2 composite with foam-like structure based on modified rubber

Li Peng , Ma Xiaoxiao , Liang Yurong and 2 other persons | 2019, 29(6) | pp.547~552 | number of Cited : 2

A role of the microtextural and surface chemical heterogeneities of porous carbons for the adsorption of CO2, CO and N2

Kim Moon Hyeon , Choi Sang Ok , Choo Soo Tae | 2019, 29(6) | pp.553~566 | number of Cited : 1

Effects of interphase regions and tunneling distance on the electrical conductivity of polymer carbon nanotubes nanocomposites

Zare Yasser , Mišković-Stanković Vesna , Rhee Kyong Yop | 2019, 29(6) | pp.567~577 | number of Cited : 0

Gasification reactivity and combustion characteristics of semi-coke

Zha Meiqin , Xia Wei , Niu Qiang | 2019, 29(6) | pp.579~584 | number of Cited : 0

Supercapacitors based on a nitrogen doped hierarchical porous carbon fabricated by self-activation of biomass: excellent rate capability and cycle stability

Zhang Zhijian , He Jingjing , Tang Xingchang and 4 other persons | 2019, 29(6) | pp.585~594 | number of Cited : 3

Fluorescent microspheres of zinc 1,2-dicarbomethoxy-1,2-dithiolate complex decorated with carbon nanotubes

Das Gouri Sankar , Sarkar Sabyasachi , Aggarwal Ruchi and 4 other persons | 2019, 29(6) | pp.595~603 | number of Cited : 0

Study of a melt processable polymer precursor for carbon fiber

Mahmood Samsuddin F. , Batchelor Benjamin L. , Jung Minhye and 4 other persons | 2019, 29(6) | pp.605~612 | number of Cited : 0

Surface shape and pore size change in carbon blacks isothermally oxidized in air atmosphere according to burn-off ratio

LeeSangMin , Lee Jae Ho , Nam Gibeop and 3 other persons | 2019, 29(6) | pp.613~623 | number of Cited : 2

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.

Ag-doping behavior on (8, 0) single-walled carbon nanotube with single C-vacancy or pyridine-like N3 defect: a DFT study

Yan Chao , Zeng Qunfeng , Zhu Jianing | 2019, 29(6) | pp.625~631 | number of Cited : 1

Adsorption characteristics of volatile organic compounds onto lyocell-based activated carbon fibers

CHOISANGSUN

, Joon Hyuk Lee , Jin， Young-Min and 1 other persons | 2019, 29(6) | pp.633~642 | number of Cited : 6

Enhanced creep behavior of carbon black/epoxy composites with high dispersion stability by fluorination

Kim Kyung Hoon

, Kim Min-Ji , Kim Ji Wook and 3 other persons | 2019, 29(6) | pp.643~648 | number of Cited : 3

Determination of the optimum porosity for 2-CEES adsorption by activated carbon fiber from various precursors

Lee hye-min , Lee Byeong-Hoon , Kim Ju-Hwan and 3 other persons | 2019, 29(6) | pp.649~654 | number of Cited : 3

KJCKorea
Journal Central

Carbon Letters 2023 KCI Impact Factor : 1.35 KCI-WoS Impact Factor : 6.04

2019, Vol.29, No.6