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Individualized p‐Doped Carbon Nanohorns
Author(s) -
Stergiou Anastasios,
Liu Zheng,
Xu Bin,
Kaneko Toshiro,
Ewels Christopher P.,
Suenaga Kazu,
Zhang Minfang,
Yudasaka Masako,
Tagmatarchis Nikos
Publication year - 2016
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.201605644
Subject(s) - raman spectroscopy , transmission electron microscopy , carbon fibers , thermogravimetry , doping , materials science , adsorption , high resolution transmission electron microscopy , nanotechnology , chemistry , optics , inorganic chemistry , optoelectronics , physics , composite number , composite material
A facile approach to individualize spherically aggregated pristine carbon nanohorns (pr‐CNHs) was established. Specifically, we found that treatment of pr‐CNHs with chlorosulfonic acid generates positively charged polarized species, which disintegrate toward individualized carbon nanohorns (in‐CNHs). Interestingly, the isolated in‐CNHs were revealed to be p‐doped owing to the adsorption of chlorosulfonate units. The findings were confirmed by data derived from high‐resolution transmission electron microscopy imaging, Raman and ultraviolet photoemission spectroscopy, and additionally supported by theoretical calculations and thermogravimetry.