Synthesis of Cobalt Chromite Nanoparticles by Thermolysis of Mixed Cr3+ and Co2+ Chelates of 2-Mercaptopyridin N-Oxide

Mohammad. Edrissi; Ahmad Reza Keshavarz

doi:10.1007/BF03353697

Issue

Vol. 4 No. 2 (2012)

Issue Published : Apr 1, 2012

Synthesis of Cobalt Chromite Nanoparticles by Thermolysis of Mixed Cr3+ and Co2+ Chelates of 2-Mercaptopyridin N-Oxide

https://doi.org/10.1007/BF03353697

Mohammad. Edrissi

Chemical Engineering Department, Amirkabir University of Technology, Hafez Ave, P. O. Box 15875-4413, Tehran, Iran

Ahmad Reza Keshavarz

Chemical Engineering Department, Amirkabir University of Technology, Hafez Ave, P. O. Box 15875-4413, Tehran, Iran

Corresponding Author: Mohammad. Edrissi

edrisi@aut.ac.ir

Nano-Micro Letters, Vol. 4 No. 2 (2012), Article Number: 83-89
Article Published : Jun 28, 2012

Abstract

Pure greenish-blue cobalt chromite (CoCr₂O₄) nanoparticles with narrow particle range of 4.1±1.9 nm and surface area of 78.2 m²g⁻¹ were synthesized through mixed chelates thermolysis of corresponding metals using 2-Mercaptopyridine N-oxide sodium salt as chelating agent. During the thermolysis procedure, high amount of gases were emitted that led to the formation of nanoparticles with high surface area. The product was characterized by TGA, DTG, XRD, TEM, SEM, LLS, BET and chemical analysis. Design of experiments was performed to fulfill the two levels L₄ Taguchi design. It was found that the temperature and time of thermolysis process have significant effect on the particle size reduction. The Oxidation of trichloroethylene was carried out over CoCr₂O₄ nanocrystallite. Catalytic activity analysis revealed that the synthesis CoCr₂O₄ possesses high catalytic activity for this process.

Keywords

CoCr2O4 Nanoparticle Chelates Termolysis Taguchi experimental design Combustion of trichloroethylene

Edrissi, Mohammad., and Ahmad Reza Keshavarz. 2012. “Synthesis of Cobalt Chromite Nanoparticles by Thermolysis of Mixed Cr3+ and Co2+ Chelates of 2-Mercaptopyridin N-Oxide”. Nano-Micro Letters 4 (2):83-89. https://doi.org/10.1007/BF03353697.

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