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Porous Carbon Fibers Containing Pores with Sizes Controlled at the Ångstrom Level by the Cavity Size of Pillar[6]arene
Author(s) -
Ogoshi Tomoki,
Yoshikoshi Kumiko,
Sueto Ryuta,
Nishihara Hirotomo,
Yamagishi Tadaaki
Publication year - 2015
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201501854
Subject(s) - carbonization , microporous material , polymerization , materials science , pillar , porosity , supramolecular chemistry , hydroquinone , porous medium , carbon fibers , chemical engineering , polymer chemistry , nanotechnology , composite material , chemistry , crystallography , polymer , crystal structure , organic chemistry , scanning electron microscope , structural engineering , composite number , engineering
Abstract We report a new synthesis method of fibrous carbon material with pores sizes that are precisely controlled at the Ångstrom level, by carbonization of two dimensional (2D) porous sheets of pillar[6]arenes. The 2D porous sheets were prepared by 2D supramolecular polymerization induced by oxidation of hydroquinone units of pillar[6]arenes. Owing to the hexagonal structure of pillar[6]arene, the assembly induced by 2D supramolecular polymerization gave hexagonal 2D porous sheets, and the highly ordered structure of the 2D porous sheets formed regular fibrous structures. Then, carbonization of the 2D porous sheets afforded fibrous carbon materials with micropores. The micropore size of the fibrous porous carbon prepared from pillar[6]arene was the same size as that of the starting material pillar[6]arene assembly.