Solid-state transformation from self-assembled nanosheets into ordered nanorods
by Konar, Sanjit; Tian, Z. Ryan
ZnO nanostructures, with a rich collection of morphologies and spatial organizations useful in a variety of important applications, have been synthesized mainly via solution- and gas-phase approaches. Here we report a simple calcination to convert self-assembled nanosheets of hydrated ZnO, each about 50 nm thick, to ordered ZnO nanorods (similar to 200 nm in diameter and similar to 4 um in length) on glass substrates or on ZnO microcrystals through a quick calcination at 400 degrees C in air. This work is among the first using a pure solid-state transformation to convert one ordered precursory nanostructure to another with different morphology and spatial organization. Both the ordered nanorods and the self-assembled nanosheets could be useful in important applications including catalysis, sensing, gas storage, and drug delivery.
- Journal
- Journal of Physical Chemistry B
- Volume
- 110
- Issue
- 9
- Year
- 2006
- Start Page
- 4054-4057
- URL
- https://dx.doi.org/10.1021/jp0561367
- ISBN/ISSN
- 1520-5207; 1520-6106
- DOI
- 10.1021/jp0561367