Abstract
The Zn 1− x Co x Al 2O 4 system has been reported to show a blue color with particles sizes that range from 36 nm to 30 μm. However, we have observed a pink color in this system with nanoparticles of an average size of 10 nm. Such differences in the optical properties of this nanosystem are related to the distribution of the cobalt cations in octahedral sites rather than in tetrahedral sites as in standard cobaltite spinels. The solid solution Zn 1− x Co x Al 2O 4 ( x = 0.2, 0.4, 0.6, 0.8 and 1) was synthesized by a co-precipitation reaction from the metallic salts and subsequent calcinations. The color properties and the high thermal stability (1400 °C) of these nanostructures suggest that they have the potential to be applied as satisfactory ceramic pigments.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
