Facile synthesis of CuO nanosheets via the controlled delamination of layered copper hydroxide acetate.
CuO nanosheets were prepared by the controlled delamination of layered copper hydroxide acetate followed by the in situ solvothermal transformation of hydroxide to oxide. The reaction was performed in 1-butanol in order to prevent recrystallization or nanoparticle aggregation. Analyses by small angle X-ray scattering, transmission electron microscopy, and atomic force microscopy revealed that the CuO nanosheets are approximately 1 nm thin, corresponding to three to four stacked CuO6 octahedral layers. The average lateral size is approximately 5 nm. The nanosheets form stable dispersions in 1-butanol that are suitable for the fabrication of transparent and homogeneous CuO thin films by spin-coating or inkjet printing techniques. The present synthesis is a rare example of the top down strategy leading to the nanometric two-dimensional nanosheets of non-layered oxide materials.
Institute of Inorganic Chemistry of the Czech Academy of Sciences, v.v.i., Husinec-Řež 1001, 250 68 Řež, Czech Republic. Electronic address: demel@iic.cas.cz.
Jan
J
Demel
Institute of Macromolecular Chemistry of the Czech Academy of Sciences, v.v.i., Heyrovského nám. 2, 162 06 Praha, Czech Republic.
Alexander
A
Zhigunov
J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, v.v.i., Dolejškova 3, 182 23 Praha 8, Czech Republic.
Ivan
I
Jirka
Institute of Inorganic Chemistry of the Czech Academy of Sciences, v.v.i., Husinec-Řež 1001, 250 68 Řež, Czech Republic.
Mariana
M
Klementová
Institute of Inorganic Chemistry of the Czech Academy of Sciences, v.v.i., Husinec-Řež 1001, 250 68 Řež, Czech Republic. Electronic address: lang@iic.cas.cz.
Kamil
K
Lang
CuO ink; Delamination; Exfoliation; Layered copper hydroxide acetate; Thin film