Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Sang Koo Jeon"'
Publikováno v:
Polymers, Vol 16, Iss 15, p 2158 (2024)
Time-dependent emitted H2 content modeling via a reliable diffusion analysis program was performed for H2-enriched polymers under high pressure. Here, the emitted hydrogen concentration versus elapsed time was obtained at different diffusivities and
Externí odkaz:
https://doaj.org/article/2e9297bdc0e645a49dc83c809fd39e66
Autor:
Jae Kap Jung, Ji Hun Lee, Sang Koo Jeon, Un Bong Baek, Si Hyeon Lee, Chang Hoon Lee, Won Jin Moon
Publikováno v:
Polymers, Vol 15, Iss 1, p 162 (2022)
We investigated the influence of two fillers—CB (carbon black) and silica—on the H2 permeation of EPDM polymers crosslinked with sulfur in the pressure ranges 1.2–90 MPa. H2 uptake in the CB-blended EPDM revealed dual sorption (Henry’s law an
Externí odkaz:
https://doaj.org/article/57b41ea2fc49437babeb868b6632e55c
Publikováno v:
Polymer Testing, Vol 99, Iss , Pp 107147- (2021)
We report volumetric analysis techniques to analyze the transport properties of hydrogen dissolved in cylindrical-shaped polymers. The techniques utilize the volume measurement of the released hydrogen from rubber by gas collection in a graduated cyl
Externí odkaz:
https://doaj.org/article/73483b4b691846498b4c94188ec6be8d
Publikováno v:
Polymers, Vol 14, Iss 11, p 2233 (2022)
Rubber materials play a key role in preventing hydrogen gas leakage in high-pressure hydrogen facilities. Therefore, it is necessary to investigate rubber materials exposed to high-pressure hydrogen to ensure operational safety. In this study, permea
Externí odkaz:
https://doaj.org/article/4a5dd6fa059e4c6f94f31b9523d9f5de
Autor:
Hyun Min Kang, Myung Chan Choi, Jin Hyok Lee, Yu Mi Yun, Jin Sub Jang, Nak Kwan Chung, Sang Koo Jeon, Jae Kap Jung, Ji Hun Lee, Jin Hong Lee, Young Wook Chang, Jong Woo Bae
Publikováno v:
Polymers, Vol 14, Iss 6, p 1151 (2022)
With the increasing interest in hydrogen energy, the stability of hydrogen storage facilities and components is emphasized. In this study, we analyzed the effect of high-pressure hydrogen gas treatment in silica-filled EPDM composites with different
Externí odkaz:
https://doaj.org/article/a0d4b772cfc24acebf84937be334efd2
Publikováno v:
AIP Advances, Vol 6, Iss 2, Pp 025020-025020-7 (2016)
Many studies have used a carbon nanotube (CNT) filter for pathogen removal and/or inactivation by means of electrochemical or electrochlorination. The large surface area, fine pore size and high electrical and thermal conductivity of CNTs make them s
Externí odkaz:
https://doaj.org/article/1d5231d6d61a4c249c087d6e8fcc23e1
Autor:
Jae Kap, Jung, Ji Hun, Lee, Sang Koo, Jeon, Un Bong, Baek, Si Hyeon, Lee, Chang Hoon, Lee, Won Jin, Moon
Publikováno v:
Polymers. 15(1)
We investigated the influence of two fillers-CB (carbon black) and silica-on the H
Publikováno v:
Transctions of the Korean Hydrogen and New Energy Society. 32:116-126
Publikováno v:
Polymer Testing, Vol 99, Iss, Pp 107147-(2021)
We report volumetric analysis techniques to analyze the transport properties of hydrogen dissolved in cylindrical-shaped polymers. The techniques utilize the volume measurement of the released hydrogen from rubber by gas collection in a graduated cyl
Publikováno v:
Scientific Reports, Vol 9, Iss 1, Pp 1-9 (2019)
Scientific Reports
Scientific Reports
Nondestructive impedance spectroscopy (IS) was developed and demonstrated to detect the effects of hydrogen on nitrile butadiene rubber exposed to hydrogen gas (H2) at high pressures up to 10 MPa. IS was applied to obtain an in situ and real-time qua