Structural, optical, magnetic, and electrical properties of nanospinels containing different molar ratios of cobalt and aluminum ions

Structural, optical, magnetic, and electrical properties of nanospinels containing different... Aluminum substituted by cobalt of cobalt aluminates having a nominal composition CoCo x Al2-x O4, where x = 0, 0.5, 1, 1.5, and 2, were synthesized by the thermal decomposition of complex precursors derived from metal nitrate salts and glycine. All samples were characterized using different techniques, XRD, FT-IR, TG, DTA, DSC, and TEM. XRD showed that all samples have a spinel cubic crystal structure. Using Debye–Scherrer formula, the calculated crystallite size was found cobalt concentration dependent and varied between 21 and 32 nm. Lattice parameter, X-ray density, porosity, and unit cell volume were calculated to show the effect of Al3+ substitution by cobalt on the crystal structure of the investigated spinel samples. Cation distribution and oxygen content into specific spinel stoichiometry of all samples were calculated. The optical, magnetic, and electrical properties were also studied. The spinel nano cobalt aluminate (x = 0.5) having Co/Al molar ratio of 1 showed the highest values of saturation magnetization (M s  = 1.1 emu g−1) and conductivity (3.1 × 10–8 Ω−1 cm−1) compared to the other ones. The color parameters (L*, a*, b*) were also measured. All results were collected and discussed. Ionics Springer Journals

Structural, optical, magnetic, and electrical properties of nanospinels containing different molar ratios of cobalt and aluminum ions

Loading next page...
Springer Berlin Heidelberg
Copyright © 2017 by Springer-Verlag Berlin Heidelberg
Chemistry; Electrochemistry; Renewable and Green Energy; Optical and Electronic Materials; Condensed Matter Physics; Energy Storage
Publisher site
See Article on Publisher Site


You’re reading a free preview. Subscribe to read the entire article.

DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches


Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.



billed annually
Start Free Trial

14-day Free Trial