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Effect of sintering temperature on the magnetic properties and charge density distribution of nano-NiO

  • Subramanian Saravanakumar EMAIL logo , Ramachandran Saravanan und Subramanian Sasikumar
Veröffentlicht/Copyright: 9. Februar 2014
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Chemical Papers
Aus der Zeitschrift Chemical Papers Band 68 Heft 6

Abstract

Phase pure nano nickel oxide was synthesized by the chemical precipitation method and sintered at 200°C, 400°C and 600°C, respectively, to study the effect of sintering on the charge distribution and magnetism. The samples were analyzed by X-ray diffraction for electron density distribution studies, vibrating sample magnetometry for magnetic behavior and by UV-VIS spectrophotometry for optical characteristics. Rearrangement of charge density distribution with respect to sintering temperature was analyzed through the maximum entropy method employed using powder X-ray diffraction data. The observed magnetic transition with respect to the temperature/size effect was analyzed and correlated with electron density distribution studies.

Keywords: MEM; XRD; VSM; electron density

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Published Online: 2014-2-9
Published in Print: 2014-6-1

© 2013 Institute of Chemistry, Slovak Academy of Sciences

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https://doi.org/10.2478/s11696-013-0519-1
Schlagwörter für diesen Artikel
MEM; XRD; VSM; electron density

Artikel in diesem Heft

  1. Rapid determination of fosetyl-aluminium in commercial pesticide formulations by high-performance liquid chromatography
  2. Immobilisation of acid pectinase on graphene oxide nanosheets
  3. Bench-scale biosynthesis of isonicotinic acid from 4-cyanopyridine by Pseudomonas putida
  4. Enzymatic synthesis of a chiral chalcogran intermediate
  5. Separation of Cd(II) and Ni(II) ions by supported liquid membrane using D2EHPA/M2EHPA as mobile carrier
  6. Fouling of nanofiltration membranes used for separation of fermented glycerol solutions
  7. Oxyhumolite influence on adsorption and desorption of phosphate on blast furnace slag in the process of two-stage selective adsorption of Cu(II) and phosphate
  8. Cellulose-precipitated calcium carbonate composites and their effect on paper properties
  9. Landfill leachate treatment using the sequencing batch biofilm reactor method integrated with the electro-Fenton process
  10. Effect of sintering temperature on the magnetic properties and charge density distribution of nano-NiO
  11. Synthesis, optimization, characterization, and potential agricultural application of polymer hydrogel composites based on cotton microfiber
  12. Cu(II) removal enhancement from aqueous solutions using ion-imprinted membrane technique
  13. Synthesis of new eburnamine-type alkaloid via direct hydroalkoxylation
  14. Selection of surfactants as main components of ecological wetting agent for effective extinguishing of forest and peat-bog fires
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  16. A simple method for creating molecularly imprinted polymer-coated bacterial cellulose nanofibers
  17. Determination of pK a of N-alkyl-N,N-dimethylamine-N-oxides using 1H NMR and 13C NMR spectroscopy
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