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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/9227

Title: Hydrothermal synthesis of ZnO nanorods: a statistical determination of the significant parameters in view of reducing the diameter
Authors: ELEN, Ken
VAN DEN RUL, Heidi
HARDY, An
VAN BAEL, Marlies
D'HAEN, Jan
Peeters, Roos
FRANCO, Dirk
MULLENS, Jules
Issue Date: 2009
Publisher: IOP PUBLISHING LTD
Citation: NANOTECHNOLOGY, 20(5)
Abstract: In this paper a 2(8-4) fractional factorial design of experiments is applied to identify the important parameters that affect the average diameter of ZnO rods, synthesized by means of a hydrothermal procedure. A water-based Zn2+ precursor is used for the formation of one-dimensional ZnO particles, without the presence of an organic additive. Results indicate that, at the investigated levels, four of the parameters have a significant effect on the mean diameter. These are the temperature, the heating rate, stirring and an ultrasonic pre-treatment of the precursor solution. Experiments carried out with zinc acetate and zinc chloride do not show a significant difference in rod diameter. Other parameters that do not show a significant effect are the concentration of Zn2+, the molar ratio between the hydroxyl and the zinc ions, and the reaction time. Interactions are observed between stirring and an ultrasonic pre-treatment and between the zinc concentration and the OH:Zn ratio. By fixing the significant factors at their optimal value it is possible to decrease the mean diameter. The particles are characterized by means of x-ray diffraction (XRD) and transmission electron microscopy (TEM).
Notes: [Elen, Ken; Van den Rul, Heidi; Hardy, An; Van Bael, Marlies K.; Mullens, Jules] Hasselt Univ, Inst Mat Res Inorgan & Phys Chem, B-3590 Diepenbeek, Belgium. [Elen, Ken; Hardy, An; Peeters, Roos; Franco, Dirk] XIOS Hogesch Limburg, B-3590 Diepenbeek, Belgium. [Van den Rul, Heidi; Hardy, An; Van Bael, Marlies K.] IMEC VZW, Div IMOMEC, B-3590 Diepenbeek, Belgium. [D'Haen, Jan] Hasselt Univ, Inst Mat Res, Mat Phys Grp, B-3590 Diepenbeek, Belgium.
URI: http://hdl.handle.net/1942/9227
DOI: 10.1088/0957-4484/20/5/055608
ISI #: 000262375700024
ISSN: 0957-4484
Category: A1
Type: Journal Contribution
Validation: ecoom, 2010
Appears in Collections: Research publications

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