Abstract
We investigated the inner structure of an aggregate made of single-wall carbon nanohorns (SWNHs). This structure has not been clarified because the thousands of SWNHs are densely packed and difficult to observe directly by electron microscopy. We used Gd2O3 as a probe for the electron microscope observation: Gd2O3 was confined inside SWNH via the incorporation of Gd acetate inside SWNHs with holes opened (NHox), followed by heat treatment at 1200 °C in Ar gas. From microscopic study, we found that Gd2O3 formed clumped crystals with sizes of 7-21 nm around the center of the SWNH aggregates, suggesting that there were 10-20-nm caves near the aggregate's center.
Original language | English |
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Pages (from-to) | 2741-2744 |
Number of pages | 4 |
Journal | Journal of Physical Chemistry C |
Volume | 113 |
Issue number | 7 |
DOIs | |
Publication status | Published - Feb 19 2009 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Energy(all)
- Physical and Theoretical Chemistry
- Surfaces, Coatings and Films