@article{ART002958867},
author={Kim Dae Wan and Kwac Lee-Ku and Kim Hong-Gun and Ryu, Seung-Kon},
title={Measuring electrical resistances of ACF sensors by CO2 adsorption in a small chamber},
journal={Carbon Letters},
issn={1976-4251},
year={2022},
volume={32},
number={1},
pages={295-304},
doi={10.1007/s42823-021-00306-6}
TY - JOUR
AU - Kim Dae Wan
AU - Kwac Lee-Ku
AU - Kim Hong-Gun
AU - Ryu, Seung-Kon
TI - Measuring electrical resistances of ACF sensors by CO2 adsorption in a small chamber
JO - Carbon Letters
PY - 2022
VL - 32
IS - 1
PB - Korean Carbon Society
SP - 295
EP - 304
SN - 1976-4251
AB - The electrical resistances of small-sized activated carbon fiber (ACF) fabric (specific surface area: 1244.7 m2/g, average pore diameter: 1.92 nm) and felt (specific surface area: 1321.2 m2/g, average pore diameter: 2.21 nm) sensors were measured in a temperature and humidity controlled gas chamber by CO2 adsorption at different surrounding CO2 concentrations (3000–10,000 ppm). The electrical resistances of ACF sensors decreased linearly as the increase of temperature and decreased exponentially as the increase of humidity in the ambient atmospheric chamber. The electrical resistances of ACF rapidly decreased within 4 s and an equilibrium state was achieved within 10 s due to the very rapid CO2 adsorption at room temperature and 40% humidity. Comparing the difference in electrical resistance values measured during injection of similar concentrations of CO2 after reaching the equilibrium value, the fabric exhibited a significant change, whereas the felt did not, even though it had a relatively larger specific surface area. The reason is that micropore volume greatly affected the amount of CO2 adsorbed, whereas the specific surface area did not affect it as much. Therefore, ACF fabric with large micropores (> 2.0 nm) can be developed and used as CO2 sensors in small rooms such as a passenger vehicles.
KW - Electrical resistance;Activated carbon fiber;CO2 adsorption;Micropore volume;ACF sensor
DO - 10.1007/s42823-021-00306-6
ER -
Kim Dae Wan, Kwac Lee-Ku, Kim Hong-Gun and Ryu, Seung-Kon. (2022). Measuring electrical resistances of ACF sensors by CO2 adsorption in a small chamber. Carbon Letters, 32(1), 295-304.
Kim Dae Wan, Kwac Lee-Ku, Kim Hong-Gun and Ryu, Seung-Kon. 2022, "Measuring electrical resistances of ACF sensors by CO2 adsorption in a small chamber", Carbon Letters, vol.32, no.1 pp.295-304. Available from: doi:10.1007/s42823-021-00306-6
Kim Dae Wan, Kwac Lee-Ku, Kim Hong-Gun, Ryu, Seung-Kon "Measuring electrical resistances of ACF sensors by CO2 adsorption in a small chamber" Carbon Letters 32.1 pp.295-304 (2022) : 295.
Kim Dae Wan, Kwac Lee-Ku, Kim Hong-Gun, Ryu, Seung-Kon. Measuring electrical resistances of ACF sensors by CO2 adsorption in a small chamber. 2022; 32(1), 295-304. Available from: doi:10.1007/s42823-021-00306-6
Kim Dae Wan, Kwac Lee-Ku, Kim Hong-Gun and Ryu, Seung-Kon. "Measuring electrical resistances of ACF sensors by CO2 adsorption in a small chamber" Carbon Letters 32, no.1 (2022) : 295-304.doi: 10.1007/s42823-021-00306-6
Kim Dae Wan; Kwac Lee-Ku; Kim Hong-Gun; Ryu, Seung-Kon. Measuring electrical resistances of ACF sensors by CO2 adsorption in a small chamber. Carbon Letters, 32(1), 295-304. doi: 10.1007/s42823-021-00306-6
Kim Dae Wan; Kwac Lee-Ku; Kim Hong-Gun; Ryu, Seung-Kon. Measuring electrical resistances of ACF sensors by CO2 adsorption in a small chamber. Carbon Letters. 2022; 32(1) 295-304. doi: 10.1007/s42823-021-00306-6
Kim Dae Wan, Kwac Lee-Ku, Kim Hong-Gun, Ryu, Seung-Kon. Measuring electrical resistances of ACF sensors by CO2 adsorption in a small chamber. 2022; 32(1), 295-304. Available from: doi:10.1007/s42823-021-00306-6
Kim Dae Wan, Kwac Lee-Ku, Kim Hong-Gun and Ryu, Seung-Kon. "Measuring electrical resistances of ACF sensors by CO2 adsorption in a small chamber" Carbon Letters 32, no.1 (2022) : 295-304.doi: 10.1007/s42823-021-00306-6
