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Carbon Nanosheets by Morphology‐Retained Carbonization of Two‐Dimensional Assembled Anisotropic Carbon Nanorings
Author(s) -
Mori Taizo,
Tanaka Hiroyuki,
Dalui Amit,
Mitoma Nobuhiko,
Suzuki Kengo,
Matsumoto Mutsuyoshi,
Aggarwal Nikhil,
Patnaik Archita,
Acharya Somobrata,
Shrestha Lok Kumar,
Sakamoto Hirotoshi,
Itami Kenichiro,
Ariga Katsuhiko
Publication year - 2018
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201803859
Subject(s) - nanosheet , carbonization , materials science , carbon fibers , nanotechnology , chemical engineering , dopant , nanoring , fabrication , doping , composite material , scanning electron microscope , composite number , medicine , alternative medicine , pathology , engineering , optoelectronics
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.