Synthesis Of The FeIn2Se4 Compounds

Year 2017, , 93 - 102, 13.07.2017

Aliye Rzayeva

https://doi.org/10.18596/jotcsa.315546

Cited By: 2

Abstract

•     Indium is transferred by the tartaric acid in the
  strong complex in aqueous medium. Then the selenizing solution (solution of
  selenium on sodium tetraborate) is added. The voluminous sediment of yellow
  color turns out. Composition of the determined by differential thermal analysis
  and electron microprobe analysis. The qualitative analysis of this sediment has
  shown the presence of indium and selenium. In various experiments are produced
  sediments of different colors when medium pH changes. The set of experiments
  has been carried out to specify color change and hydrogen ions concentration
  impact. This FeIn₂Se₄ compound for
  production FeSO₄x7H₂O is mixed with In₂Se₄ in
  the molar ratios 2:3 (FeIn₂Se₄)  with the presence of acetate acid
  (pH=7-3), at
  293-353 K in aqueous medium. In organic medium test within 10 hours
  at 413
  – 443 K to
  temperature remains in the furnace. Phase analysis of FeIn₂Se₄  is studied
  using the X-ray powder diffraction (XRD) and
  chemical analysis. The compound FeIn₂Se₄  crystallized in
  hexagonal singoniya a=4.012 Å, c=39.21 Å. Morphological investigations have been performed using
  scanning electron microscopy (SEM). Optical absorption is measured using a
  spectrophotometer, IK spektr analysis on the basis of the spectrum, which
  has been read from the dispersed solution of FeIn₂Se₄ is
  calculated. Differential thermal
  analysis (DTA) ofFeIn₂Se₄ compound
  is observed one endothermic effect. In the system T_g=1158 K aqueous
  medium, T_g=1123 K organic
  medium endothermic effect corresponds to the
  melting point of the combination. In this iron indium selenide
  efficiency is 92.2 %. 
• 
  

Keywords

iron indium selenide, differential thermal analysis, sedimentation speed, chemical analyses, scanning electron microscopy

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