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DC Field | Value | Language |
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dc.citation.endPage | 321 | - |
dc.citation.startPage | 309 | - |
dc.citation.title | CARBON | - |
dc.citation.volume | 121 | - |
dc.contributor.author | Zhang, Xu | - |
dc.contributor.author | Goossens, Karel | - |
dc.contributor.author | Li, Wei | - |
dc.contributor.author | Chen, Xianjue | - |
dc.contributor.author | Chen, Xiong | - |
dc.contributor.author | Saxena, Manav | - |
dc.contributor.author | Lee, Sun Hwa | - |
dc.contributor.author | Bielawski, Christopher W. | - |
dc.contributor.author | Ruoff, Rodney S. | - |
dc.date.accessioned | 2023-12-21T21:47:35Z | - |
dc.date.available | 2023-12-21T21:47:35Z | - |
dc.date.created | 2017-07-05 | - |
dc.date.issued | 2017-09 | - |
dc.description.abstract | Hydrogenated graphite was synthesized through a Birch-type reduction by treating fluorinated graphite ((CFx)(n), x similar to 1.1) with a solution of Li in liquid NH3 followed by the addition of H2O as the proton donor. The conversion was evaluated by Fourier transform infrared spectroscopy, Raman spectroscopy and powder X-ray diffraction. X-ray photoelectron spectroscopy and combustion elemental analysis were used to determine and quantify the chemical composition, giving an empirical formula of C1H0.60O0.06N0.01 for the product with no more than 2 at.% of fluorine atoms remaining. Thermal dehydrogenation of the hydrogenated material - as investigated by thermogravimetric analysis coupled to mass spectrometry - predominately occurs over the range of 350-600 degrees C. The product was also analyzed using scanning electron microscopy, atomic force microscopy and transmission electron microscopy, which collectively supported the formation of hydrogenated graphene sheets through a wet-chemical route. To elucidate the structure of the hydrogenated sample, the material was investigated by solid-state nuclear magnetic resonance spectroscopy. Direct pulse and cross-polarization nuclear magnetic resonance measurements, including spin counting, spectral editing and 2D heteronuclear correlation experiments, revealed the nature of the sp(3)- and sp(2)-hybridized carbon nuclei, and indicated that methine, methylene and quaternary sp(3)-carbon atoms were present in the hydrogenated material. | - |
dc.identifier.bibliographicCitation | CARBON, v.121, pp.309 - 321 | - |
dc.identifier.doi | 10.1016/j.carbon.2017.05.089 | - |
dc.identifier.issn | 0008-6223 | - |
dc.identifier.scopusid | 2-s2.0-85020250237 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/22371 | - |
dc.identifier.url | http://www.sciencedirect.com/science/article/pii/S0008622317305468 | - |
dc.identifier.wosid | 000405294400035 | - |
dc.language | 영어 | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.title | Structural insights into hydrogenated graphite prepared from fluorinated graphite through Birch−type reduction | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry; Materials Science | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | SOLID-STATE NMR | - |
dc.subject.keywordPlus | NUCLEAR-MAGNETIC-RESONANCE | - |
dc.subject.keywordPlus | ELECTRON-SPIN-RESONANCE | - |
dc.subject.keywordPlus | C-13 NMR | - |
dc.subject.keywordPlus | CARBON NANOTUBES | - |
dc.subject.keywordPlus | GRAPHENE | - |
dc.subject.keywordPlus | SPECTROSCOPY | - |
dc.subject.keywordPlus | RELIABILITY | - |
dc.subject.keywordPlus | FUNCTIONALIZATION | - |
dc.subject.keywordPlus | SUPPRESSION | - |
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