Raman spectroscopic investigation of the effects of heat-treatment and Al, Ce or Eu doping concentration on TiO2 powder crystallization
Journal Title: Journal of New technology and Materials - Year 2016, Vol 6, Issue 2
Abstract
In this paper, we study the effects of various doping elements (Aluminum, Cerium or Europium) with different contents and of heat-treatment on the structural properties of TiO2 nano-crystalline powders. The sol-gel technique was used to prepare the doped and undoped TiO2 powders. The structures of the obtained samples were investigated using Raman spectroscopy, which allowed to monitor the formation of anatase and rutile crystalline phases as a function of the annealing temperature. We have shown that all the doping elements contribute to stabilize anatase phase at high calcination temperature. Furthermore, doping with Europium was found to be the most efficient anatase phase stabilizer.
Authors and Affiliations
Oualid Berkani, Khelil Latrous, Bruno Capoen, Mohamed Bouazaoui
Keywords
Related Articles
- EP ID EP268280
- DOI -
- Views 30
- Downloads 0
Developing heat transfer in a solar air channel with arc-shaped baffles: effect of baffle attack angle
The current study illustrates a computational fluid dynamic analysis of 2D steady-state turbulent forced-convection flow and friction loss characteristics through a constant temperature-surfaced rectangular cross section...
Numerical Modelling of boron diffusion for micro-pyramidal textured N-type silicon
The formation of the emitter is considered as a crucial technological sequence during the manufacture of solar cells the thermal diffusion from a solid source in acylindrical quartz tube constitutes the most widely know...
Removal of Zinc from water by adsorption on different adsorbent
The aim of this work is to study zinc removal possibility by adsorption on an Algerian bentonite (bentonite of Maghnia), goethite, powdered activated carbon (PAC) and kaolin. Various reaction parameter effects on process...
Analysis of impurities of Nd-Fe-B Magnet by nuclear method and recovery by precipitation chemical of Nd and Pr rare earths
The products of the new information and communication technologies (NTIC), whose life often not exceed three years, became consumables to the computer image and other waste that contains neodymium and praseodymium (rare...
Numerical investigation of three-dimensionalheat transfer and natural convection in the sapphire melt for Czochralski growth process
A three-dimensional numerical study of the convection heat transfer in a simulated Czochralski system is conducted .In this work, the numerical investigation were performed to analyze the free convection in the Czochrals...