Journal
MATERIALS CHEMISTRY AND PHYSICS
Volume 103, Issue 1, Pages 54-58Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2007.01.006
Keywords
sol-gel; oxalic acid; spinel oxide; ZnCo2O4; TGA; XRD; DSC
Categories
Ask authors/readers for more resources
The zinc-cobalt-oxide spinel was obtained by the thermal decomposition of Zn-Co gel prepared by sol-gel method using oxalic acid as a chelating agent. The formation of spinel compound ZnCo2O4 has been confirmed by thermogravimetry (TGA) and X-ray powder diffraction (XRD) and Infra-red spectra (IR). It was shown that well-crystallized spinel structure is formed after calcination at 350 degrees C (low-temperature spinel). The particle size of 15 similar to 20 nm has been measured by transmission electron microscope (TEM). Non-isothermal kinetic parameters (E-a, f(alpha) and A) for the decomposition process of the oxalate precursor were determined using differential scanning calorimetry (DSC) under air atmosphere. The sol-gel method provides a practicable and effective route for the synthesis the spinel compound ZnCo2O4 at low temperature. (C) 2007 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available