Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, Athens, 11635, Greece.
Inorganic Functional Materials Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Anagahora 2266-98, Shimoshidami, Moriyamaku, Nagoya, 463-8560, Japan.
Angew Chem Int Ed Engl. 2016 Aug 22;55(35):10468-72. doi: 10.1002/anie.201605644. Epub 2016 Jul 22.
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.
建立了一种将原始碳纳米角（pr-CNH）球化的简易方法。具体而言，我们发现用氯磺酸处理 pr-CNH 会生成带正电荷的极化物种，这些物种会朝着个体碳纳米角（in-CNH）分解。有趣的是，由于氯磺酸盐单元的吸附，分离得到的 in-CNH 被证实为 p 型掺杂。这些发现得到了高分辨率透射电子显微镜成像、拉曼和紫外光电子能谱数据的证实，并且通过理论计算和热重分析得到了进一步支持。
