Paramagnetic Carbon Nanosheets with Random Hole Defects and Oxygenated Functional Groups
Dr. Sun-Min Jung
School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 South Korea
Search for more papers by this authorDr. Jungmin Park
School of Materials Science and Engineering/Low-Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 South Korea
Search for more papers by this authorDr. Dongbin Shin
Department of Physics, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 South Korea
Search for more papers by this authorProf. Dr. Hu Young Jeong
UNIST Central Research Facilities (UCRF), Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 South Korea
Search for more papers by this authorDongKyu Lee
School of Life Sciences, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 South Korea
Search for more papers by this authorProf. Dr. In-Yup Jeon
Department of Chemical Engineering, Wonkwang University, 460 Iksandae-ro, Iksan, Jeonbuk, 54538 South Korea
Search for more papers by this authorProf. Dr. HyungJoon Cho
School of Life Sciences, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 South Korea
Search for more papers by this authorCorresponding Author
Prof. Dr. Noejung Park
Department of Physics, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 South Korea
Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Center for Free Electron Laser Science, 22761 Hamburg, Germany
Search for more papers by this authorCorresponding Author
Prof. Dr. Jung-Woo Yoo
School of Materials Science and Engineering/Low-Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 South Korea
Search for more papers by this authorCorresponding Author
Prof. Dr. Jong-Beom Baek
School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 South Korea
Search for more papers by this authorDr. Sun-Min Jung
School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 South Korea
Search for more papers by this authorDr. Jungmin Park
School of Materials Science and Engineering/Low-Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 South Korea
Search for more papers by this authorDr. Dongbin Shin
Department of Physics, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 South Korea
Search for more papers by this authorProf. Dr. Hu Young Jeong
UNIST Central Research Facilities (UCRF), Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 South Korea
Search for more papers by this authorDongKyu Lee
School of Life Sciences, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 South Korea
Search for more papers by this authorProf. Dr. In-Yup Jeon
Department of Chemical Engineering, Wonkwang University, 460 Iksandae-ro, Iksan, Jeonbuk, 54538 South Korea
Search for more papers by this authorProf. Dr. HyungJoon Cho
School of Life Sciences, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 South Korea
Search for more papers by this authorCorresponding Author
Prof. Dr. Noejung Park
Department of Physics, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 South Korea
Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Center for Free Electron Laser Science, 22761 Hamburg, Germany
Search for more papers by this authorCorresponding Author
Prof. Dr. Jung-Woo Yoo
School of Materials Science and Engineering/Low-Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 South Korea
Search for more papers by this authorCorresponding Author
Prof. Dr. Jong-Beom Baek
School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 South Korea
Search for more papers by this authorAbstract
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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