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  Paramagnetic Carbon Nanosheets with Random Hole Defects and Oxygenated Functional Groups

Jung, S., Park, J., Shin, D., Jeong, H. Y., Lee, D., Jeon, I., et al. (2019). Paramagnetic Carbon Nanosheets with Random Hole Defects and Oxygenated Functional Groups. Angewandte Chemie International Edition, 58(34), 11670-11675. doi:10.1002/anie.201903226.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0004-700F-E Version Permalink: https://hdl.handle.net/21.11116/0000-0004-AEFB-E
Genre: Journal Article

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Jung_et_al-2019-Angewandte_Chemie_International_Edition.pdf (Publisher version), 4MB
 
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 Creators:
Jung, S.‐M.1, Author
Park, J.2, Author
Shin, D.3, Author
Jeong, H. Y.4, Author
Lee, D.5, Author
Jeon, I.‐Y.6, Author
Cho, H.5, Author
Park, N.3, 7, 8, Author           
Yoo, J.‐W.2, Author
Baek, J.‐B.1, Author
Affiliations:
1School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), ou_persistent22              
2School of Materials Science and Engineering/Low-Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), ou_persistent22              
3Department of Physics, Ulsan National Institute of Science and Technology (UNIST), ou_persistent22              
4UNIST Central Research Facilities (UCRF), Ulsan National Institute of Science and Technology (UNIST), ou_persistent22              
5School of Life Sciences, Ulsan National Institute of Science and Technology (UNIST), ou_persistent22              
6Department of Chemical Engineering, Wonkwang University, ou_persistent22              
7Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266715              
8Center for Free Electron Laser Science, ou_persistent22              

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Free keywords: dehydration; graphitic carbon nanosheets; hole defects; oxygenated functional groups; paramagnetism
 Abstract: Ordered graphitic carbon nanosheets (GCNs) were, for the first time, synthesized by the direct condensation of multifunctional phenylacetyl building blocks (monomers) in the presence of phosphorous pentoxide. The GCNs had highly ordered structures with random hole defects and oxygenated functional groups, showing paramagnetism. The results of combined structural and magnetic analyses indicate that the hole defects and functional groups are associated with the appearance and stabilization of unpaired spins. DFT calculations further suggest that the emergence of stabilized spin moments near the edge groups necessitates the presence of functionalized carbon atoms around the hole defects. That is, both hole defects and oxygenated functional groups are essential ingredients for the generation and stabilization of spins in GCNs.

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Language(s): eng - English
 Dates: 2019-05-232019-03-152019-06-142019-08-19
 Publication Status: Issued
 Pages: 6
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1002/anie.201903226
 Degree: -

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Project name : The authors are grateful for financial support from the Creative Research Initiative (CRI, 2014R1A3A2069102), the BK21 Plus (10Z20130011057), Science Research Centre (SRC, 2016R1A5A1009405) and S.‐M.J. and I.‐Y.J. appreciates for the support from the Basic Science Research (2018R1A6A3A11050815, 2018R1D1A1B07041085) programs through the National Research Foundation (NRF) of Korea funded by the Ministry of Education. J.‐W.Y. acknowledges the support of the NRF of Korea (2017R1A2B4008286). N.P. appreciates for the support from BRL (NRF‐2017R1A4A1015323) and H.C. is partly supported by National Research Foundation (NRF) of Korea (2018M3C7A1056887).
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Title: Angewandte Chemie International Edition
  Other : Angewandte Chemie, International Edition
  Other : Angew. Chem. Int. Ed.
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH
Pages: - Volume / Issue: 58 (34) Sequence Number: - Start / End Page: 11670 - 11675 Identifier: ISSN: 1433-7851
CoNE: https://pure.mpg.de/cone/journals/resource/1433-7851