<abstract xmlns="http://www.w3.org/1999/xhtml">Copper oxide and cobalt oxide (Co3O4, CuO) nanocrystals (NCs) have been successfully prepared using microwave irradiation. The obtained powders of the nanocrystals (NCs) were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), thermogravimetric (TGA) analysis and Fourier-transform infrared spectroscopy. The obtained results confirm the presence of both nanooxides which have been produced during chemical precipitation using microwave irradiation. TEM micrographs have shown that the obtained nanocrystals are characterized by high dispersion and narrow size distribution. The results of X-ray diffraction confirmed those obtained from the transmission electron microscope. Optical absorption analysis indicated the direct band gap for both kinds of the nanocrystals.</abstract>

Copper oxide and cobalt oxide (Co3O4, CuO) nanocrystals (NCs) have been successfully prepared using microwave irradiation. The obtained powders of the nanocrystals (NCs) were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), thermogravimetric (TGA) analysis and Fourier-transform infrared spectroscopy. The obtained results confirm the presence of both nanooxides which have been produced during chemical precipitation using microwave irradiation. TEM micrographs have shown that the obtained nanocrystals are characterized by high dispersion and narrow size distribution. The results of X-ray diffraction confirmed those obtained from the transmission electron microscope. Optical absorption analysis indicated the direct band gap for both kinds of the nanocrystals.

Preparation and characterization of cobalt and copper oxide nanocrystals

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Preparation and characterization of cobalt and copper oxide nanocrystals"}

Copper oxide and cobalt oxide (Co3O4, CuO) nanocrystals (NCs) have been successfully prepared using microwave irradiation. The obtained powders of the...

Preparation and characterization of cobalt and copper oxide nanocrystals

Publié en ligne: 18 oct. 2019

Pages: 347 - 352

Reçu: 14 juin 2017

Accepté: 12 nov. 2018

DOI: https://doi.org/10.2478/msp-2019-0048

Mots clés
nanoparticles synthesis, metal oxides, microwave oven, TEM micrographs, X-ray diffraction

© 2019 A. H. Moharram, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Preparation and characterization of cobalt and copper oxide nanocrystals

Publié en ligne: 18 oct. 2019

Pages: 347 - 352

Reçu: 14 juin 2017

Accepté: 12 nov. 2018

DOI: https://doi.org/10.2478/msp-2019-0048

Mots clésnanoparticles synthesis, metal oxides, microwave oven, TEM micrographs, X-ray diffraction

© 2019 A. H. Moharram, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
nanoparticles synthesis, metal oxides, microwave oven, TEM micrographs, X-ray diffraction