A Study on Electron Acceptor of Carbonaceous Materials for Highly Efficient Hydrogen Uptakes

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dc.contributor.authorLee, Seul-Yien
dc.contributor.authorPark, Ji-Hyeen
dc.contributor.authorHeo, Young-Jungen
dc.contributor.authorLee, Eun-Sangen
dc.contributor.authorPark, Soo-Jinen
dc.date.accessioned2022-09-09T18:31:39Zen
dc.date.available2022-09-09T18:31:39Zen
dc.date.issued2021-12en
dc.description.abstractSignificant efforts have been directed toward the identification of carbonaceous materials that can be utilized for hydrogen uptake in order to develop on-board automotive systems with a gravimetric capacity of 5.5 wt.%, thus meeting the U.S. Department of Energy technical targets. However, the capacity of hydrogen storage is limited by the weak interaction between hydrogen molecules and the carbon surface. Cigarette butts, which are the most abundant form of primary plastic waste, remain an intractable environmental pollution problem. To transform this source of waste into a valuable adsorbent for hydrogen uptake, we prepared several forms of oxygen-rich cigarette butt-derived porous carbon (CGB-AC, with the activation temperature range of 600 and 900 & DEG;C). Our experimental investigation revealed that the specific surface area increased from 600 to 700 & DEG;C and then decreased as the temperature rose to 900 & DEG;C. In contrast, the oxygen contents gradually decreased with increasing activation temperature. CGB-AC700 had the highest H-2 excess uptake (QExcess) of 8.54 wt.% at 77 K and 20 bar, which was much higher than that of porous carbon reported in the previous studies. We found that the dynamic interaction between the porosity and the oxygen content determined the hydrogen storage capacity. The underlying mechanisms proposed in the present study would be useful in the design of efficient hydrogen storage because they explain the interaction between positive carbonaceous materials and negative hydrogen molecules in quadrupole orbitals.en
dc.description.notesThis work was supported by the Technology Innovation Program (or Industrial Strategic Technology Development Program), Innovative technology for CO2 free hydrogen production using molten catalysts (20012373) funded by the Ministry of Trade, Industry & Energy(MOTIE, Korea), the Korea Electric Power Corporation (Grant number: R21XO01-5), and the Korea Initiative for Fostering University of Research and Innovation (KIURI) Program of the National Research Foundation (NRF) funded by the Korean government (MSIT) (No. NRF-2021M3H1A106413511).en
dc.description.sponsorshipTechnology Innovation Program (or Industrial Strategic Technology Development Program), Innovative technology for CO2 free hydrogen production using molten catalysts - Ministry of Trade, Industry & Energy(MOTIE, Korea); Korea Electric Power Corporation [R21XO01-5]; Korea Initiative for Fostering University of Research and Innovation (KIURI) Program of the National Research Foundation (NRF) - Korean government (MSIT) [NRF-2021M3H1A106413511]en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.3390/catal11121524en
dc.identifier.eissn2073-4344en
dc.identifier.issue12en
dc.identifier.other1524en
dc.identifier.urihttp://hdl.handle.net/10919/111778en
dc.identifier.volume11en
dc.language.isoenen
dc.publisherMDPIen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjecthydrogen storageen
dc.subjectoxygen-functional groupsen
dc.subjectporous carbonsen
dc.subjectpore sizeen
dc.subject77 Ken
dc.titleA Study on Electron Acceptor of Carbonaceous Materials for Highly Efficient Hydrogen Uptakesen
dc.title.serialCatalystsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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Scholarly Works, Mechanical Engineering
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Strategic Growth Area: Economical and Sustainable Materials (ESM)