Detailed Analysis of the Growth Kinetics of ZnO Nanorods in Methanol
Voigt M, Klaumünzer M, Thiem H, Peukert W (2010)
Publication Language: English
Publication Type: Journal article, Original article
Publication year: 2010
Journal
Book Volume: 114
Pages Range: 6243--6249
Volume: 114
Issue: 14
Journal Issue: 14
DOI: 10.1021/jp911258d
Abstract
The growth kinetics of ZnO nanorods in methanol is studied by a combination of scanning and high-resolution transmission electron microscopy and X-ray diffraction analysis. In the early stage of growth oriented attachment of 2−3 spheroidal crystallites to rod-like structures occurs. Later, rods of up to 90 nm in length with a hexagonal cross-section up to 18 nm in diameter form by ripening. Our main finding is that the growth follows a power law as a function of the ripening time with exponents of 0.32 to 0.39 for the length and 0.17 to 0.21 for the diameter. In contrast to previous studies on the growth of ZnO rods in alcohols our results indicate that the growth is dominated by anisotropic Ostwald ripening that is limited by volume diffusion.
Authors with CRIS profile
Michael Voigt
Lehrstuhl für Partikelsynthese (LFG)
Martin Klaumünzer
Lehrstuhl für Partikelsynthese (LFG)
Wolfgang Peukert
Lehrstuhl für Partikelsynthese (LFG)
Additional Organisation(s)
Involved external institutions
Germany (DE)How to cite
APA:
Voigt, M., Klaumünzer, M., Thiem, H., & Peukert, W. (2010). Detailed Analysis of the Growth Kinetics of ZnO Nanorods in Methanol. Journal of Physical Chemistry C, 114(14), 6243--6249. https://doi.org/10.1021/jp911258d
MLA:
Voigt, Michael, et al. "Detailed Analysis of the Growth Kinetics of ZnO Nanorods in Methanol." Journal of Physical Chemistry C 114.14 (2010): 6243--6249.
BibTeX: Download