Ligand-free Self-Assembly of Ceria Nanocrystals into Nanorods by Oriented Attachment at Low Temperature
The Journal of Physical Chemistry C2007Vol. 111(34), pp. 12677–12680
Citations Over TimeTop 10% of 2007 papers
Abstract
Single-crystalline ceria nanorods have been fabricated by self-assembly of ceria nanocrystals via a simple, low-temperature, and ligand-free approach. Detailed high-resolution transmission electron microscopy shows that the nanorods are formed along the [211] or [110] direction by self-organization of truncated octahedral ceria nanocrystals, sharing the {111} or {200} planes with each other, whereas the previous report shows that only the [110] direction exists in ceria nanorods. The nucleation temperature and molar ratio of Ce3+ and OH- also play key roles in the formation of ceria nanorods. Moreover, the formation mechanism was explained in detail.
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