Detailed Analysis of the Growth Kinetics of ZnO Nanorods in Methanol

Journal article
(Original article)


Publication Details

Author(s): Voigt M, Klaumünzer M, Thiem H, Peukert W
Journal: Journal of Physical Chemistry C
Publication year: 2010
Volume: 114
Journal issue: 14
Pages range: 6243--6249
ISSN: 1932-7447
eISSN: 1932-7455
Language: English


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.



FAU Authors / FAU Editors

Klaumünzer, Martin
Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik
Peukert, Wolfgang Prof. Dr.-Ing.
Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik
Voigt, Michael Dr.
Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik


Additional Organisation
Exzellenz-Cluster Engineering of Advanced Materials


External institutions with authors

Evonik Degussa GmbH


Research Fields

A1 Functional Particle Systems
Exzellenz-Cluster Engineering of Advanced Materials


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://dx.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: 

Last updated on 2019-06-08 at 09:04