Skip to main content

Effect of Annealing Temperature on the Structural and Magnetic Properties of Co-Doped TiO2 Nanoparticles via Complex-Polymer Sol–Gel Method

Buy Article:

$113.00 plus tax (Refund Policy)

Abstract:

Co-doped TiO2 nanoparticles were synthesized via non hydrous complex-polymer sol–gel method. A series of Co x :Ti1−x O2 samples with x = 0.01, 0.03, 0.05, 0.08 and 0.10, were prepared and subsequently annealed at 400°, 600° and 800 °C. Structural and magnetic properties of Co x :Ti1−x O2 have been studied by means of X-ray diffraction and DC magnetometry. All samples annealed at 400 °C show a paramagnetic behavior with an average grain size of 11 nm. With increasing annealing temperatures a complete crystallization is seen with growth of the cluster size up to 31 nm with clear evidence of a presence of CoTiO3. For all concentrations and annealing conditions no sign of a metallic phase, even at x = 0.10, is seen.

Keywords: DC MAGNETOMETRY; DILUTED MAGNETIC SEMICONDUCTORS; FERROMAGNETISM IN SEMICONDUCTOR; SOL-GEL PROCESS; X-RAY DIFFRACTION

Document Type: Research Article

DOI: https://doi.org/10.1166/jnn.2012.5155

Publication date: 2012-02-01

More about this publication?
  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Terms & Conditions
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more