File Download

There are no files associated with this item.

  • Find it @ UNIST can give you direct access to the published full text of this article. (UNISTARs only)
Related Researcher

장지현

Jang, Ji-Hyun
Structures & Sustainable Energy Lab.
Read More

Views & Downloads

Detailed Information

Cited time in webofscience Cited time in scopus
Metadata Downloads

Metal-doped amorphous microporous carbon for isotope separation: Pore size modulation and selective deuterium adsorption

Author(s)
Kim, HyunlimJung, MinjiPark, JaewooPark, TaeungPark, JonghyeokLee, HyerinGhule, Balaji G.Jang, Ji-HyunMuhammad, RaeeshKumar, SandeepOh, Hyunchul
Issued Date
2024-11
DOI
10.1016/j.carbon.2024.119674
URI
https://scholarworks.unist.ac.kr/handle/201301/84328
Citation
CARBON, v.230, pp.119674
Abstract
Efficient hydrogen isotope separation is crucial for applications in energy production and advanced scientific research, but separation of these poses significant challenges. In this study, we developed amorphous microporous carbon (AMC) derived from a zeolite template and explored hydrogen isotope separation using quantum sieving. Thermal desorption spectroscopy (TDS) technique was used to evaluate the selectivity of hydrogen (H-2) and deuterium (D-2) isotope separation. The doping of metal ions, such as Ca-2*, Mg-2*, Ni-2*, and Cu-2*, in the porous carbon modulates the physicochemical properties of the pores. The metal-doped carbon samples demonstrated D-2 vs H-2 selectivity (S D-2/H-2 ) of over 10, compared to the pristine carbon's S D-2/H-2 of less than 8. Density functional theory (DFT) calculation infers that pore modulation through metal doping enhanced the binding affinity of materials towards D-2 resulting in increased separation selectivity compared to pristine carbon samples. This approach not only boosts separation efficiency but also provides a scalable and cost-effective solution for industrial applications.
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
ISSN
0008-6223
Keyword
ORGANIC FRAMEWORKSCHEMICAL AFFINITYMOF STABILITYHYDROGEND-2CAPACITYMIXTUREOXYGEN

qrcode

Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.