Effect of cobalt doping on the phase transformation of tio 2 nanoparticles (2005).

Content Provider	CiteSeerX
Author	Barakat, M. A. Hayes, G. Shah, S. Ismat
Abstract	Co-doped TiO2 nanoparticles containing 0.0085, 0.017, 0.0255, 0.034, and 0.085 mol % Co(III) ion dopant were synthesized via sol–gel and dip-coating techniques. The effects of metal ion doping on the transformation of anatase to the rutile phase have been investigated. Several analytical tools, such as X-ray diffraction (XRD), transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS), and energy dispersive X-ray analysis (EDAX) were used to investigate the nanoparticle structure, size distribution, and composition. Results obtained revealed that the rutile to anatase concentration ratio increases with increase of the cobalt dopant concentration and annealing temperature. The typical composition of Co-doped TiO2 was Ti1−xCoxO2, where x values ranged from 0.0085 to 0.085. The activation energy for the phase transformation from
File Format	PDF
Publisher Date	2005-01-01
Access Restriction	Open
Subject Keyword	Phase Transformation Cobalt Doping Sol Gel Rutile Phase Co-doped Tio2 Dip-coating Technique Nanoparticle Structure Concentration Ratio Increase Annealing Temperature X-ray Photoelectron Spectroscopy Energy Dispersive X-ray Analysis Cobalt Dopant Concentration Size Distribution X-ray Diffraction Ion Dopant Mol Co Typical Composition Ti1 Xcoxo2 Several Analytical Tool Metal Ion Co-doped Tio2 Nanoparticles Activation Energy
Content Type	Text