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Moon, Hoi Ri
Functional Inorganic Nanomaterials for Energy Lab (FINE)
Research Interests
  • Inorganic-organic hybrid materials, carbon capture materials, hydrogen storage materials, heterogeneous catalyst

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Exploiting Diffusion Barrier and Chemical Affinity of Metal-Organic Frameworks for Efficient Hydrogen Isotope Separation

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dc.contributor.author Kim, Jin Yeong ko
dc.contributor.author Balderas-Xicohténcatl, Rafael ko
dc.contributor.author Zhang, Linda ko
dc.contributor.author Kang, Sung Gu ko
dc.contributor.author Hirscher, Michael ko
dc.contributor.author Oh, Hyunchul ko
dc.contributor.author Moon, Hoi Ri ko
dc.date.available 2017-10-26T08:27:10Z -
dc.date.created 2017-10-26 ko
dc.date.issued 2017-10 ko
dc.identifier.citation JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.139, no.42, pp.15135 - 15141 ko
dc.identifier.issn 0002-7863 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/22869 -
dc.description.abstract Deuterium plays a pivotal role in industrial and scientific research, and is irreplaceable for various applications such as isotope tracing, neutron moderation, and neutron scattering. In addition, deuterium is a key energy source for fusion reactions. Thus, the isolation of deuterium from a physico-chemically almost identical isotopic mixture is a seminal challenge in modern separation technology. However, current commercial approaches suffer from extremely low separation efficiency (i.e., cryogenic distillation, selectivity of 1.5 at 24 K), requiring a cost-effective and large-scale separation technique. Herein, we report a highly effective hydrogen isotope separation system based on metal-organic frameworks (MOFs) having the highest reported separation factor as high as ∼26 at 77 K by maximizing synergistic effects of the chemical affinity quantum sieving (CAQS) and kinetic quantum sieving (KQS). For this purpose, the MOF-74 system having high hydrogen adsorption enthalpies due to strong open metal sites is chosen for CAQS functionality, and imidazole molecules (IM) are employed to the system for enhancing the KQS effect. To the best of our knowledge, this work is not only the first attempt to implement two quantum sieving effects, KQS and CAQS, in one system, but also provides experimental validation of the utility of this system for practical industrial usage by isolating high-purity D2 through direct selective separation studies using 1:1 D2/H2 mixtures. ko
dc.language 영어 ko
dc.publisher AMER CHEMICAL SOC ko
dc.title Exploiting Diffusion Barrier and Chemical Affinity of Metal-Organic Frameworks for Efficient Hydrogen Isotope Separation ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85032261472 ko
dc.identifier.wosid 000414115800048 ko
dc.type.rims ART ko
dc.identifier.doi 10.1021/jacs.7b07925 ko
dc.identifier.url http://pubs.acs.org/doi/10.1021/jacs.7b07925 ko
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