Carbon Nanosheets by Morphology‐Retained Carbonization of Two‐Dimensional Assembled Anisotropic Carbon Nanorings |
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| Authors: | Dr. Taizo Mori Dr. Hiroyuki Tanaka Dr. Amit Dalui Dr. Nobuhiko Mitoma Dr. Kengo Suzuki Prof. Dr. Mutsuyoshi Matsumoto Dr. Nikhil Aggarwal Prof. Dr. Archita Patnaik Dr. Somobrata Acharya Dr. Lok Kumar Shrestha Dr. Hirotoshi Sakamoto Prof. Dr. Kenichiro Itami Prof. Dr. Katsuhiko Ariga |
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| Affiliation: | 1. World Premier International (WPI) Center for Materials, Nanoarchitectonics (NAMA), National Institute for Materials Science (NIMS), Tsukuba, Ibaraki, Japan;2. JST-ERATO Itami Molecular Nanocarbon Project and Graduate School of Science, Nagoya University, Nagoya, Japan;3. Department of Materials Science and Technology, Tokyo University of Science, Katsushika-ku, Tokyo, Japan;4. Department of Chemistry, Indian Institute of Technology Madras, Chennai, India;5. Center for Advanced Materials (CAM), Indian Association for the Cultivation of Science (IACS), Jadavpur, Kolkata, India;6. Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, Japan;7. Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Japan |
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| Abstract: | Two‐dimensional (2D) carbon nanomaterials possessing promising physical and chemical properties find applications in high‐performance energy storage devices and catalysts. However, large‐scale fabrication of 2D carbon nanostructures is based on a few specific carbon templates or precursors and poses a formidable challenge. Now a new bottom‐up method for carbon nanosheet fabrication using a newly designed anisotropic carbon nanoring molecule, CPPhen, is presented. CPPhen was self‐assembled at a dynamic air–water interface with a vortex motion to afford molecular nanosheets, which were then carbonized under inert gas flow. Their nanosheet morphologies were retained after carbonization, which has never been seen for low‐molecular weight compounds. Furthermore, adding pyridine as a nitrogen dopant in the self‐assembly step successfully afforded nitrogen‐doped carbon nanosheets containing mainly pyridinic nitrogen species. |
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| Keywords: | carbon nanorings LB film fabrication nanosheets nitrogen doping self-assembly |
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