Individualized p-Doped Carbon Nanohorns

Anastasios Stergiou, Zheng Liu, Bin Xu, Toshiro Kaneko, Christopher P. Ewels, Kazu Suenaga, Minfang Zhang, Masako Yudasaka, Nikos Tagmatarchis

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)10468-10472
Number of pages5
JournalAngewandte Chemie - International Edition
Issue number35
Publication statusPublished - 2016 Aug 22


  • carbon nanohorns
  • chlorosulfonic acid
  • electronic properties
  • individualization
  • p-doping


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