Effect of La3+ substitution on the structural, electrical and electrochemical properties of strontium ferrite by citrate combustion method
IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi
View Archive Info| Field | Value | |
| Title |
Effect of La3+ substitution on the structural, electrical and electrochemical
properties of strontium ferrite by citrate combustion method
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| Creator |
Augustin, C.O.
Kalaiselvan, R. Nagaraj, R. Berchmans, L.J. |
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| Subject |
Electropyrometallurgy
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| Description |
The La3+ substituted nanocrystalline strontium ferrite has been prepared by citrate combustion method using metal nitrate salts as cation
precursors and citric acid as a fuel. The structural characteristics of the compounds have been evaluated using XRD and FTIR. The existence of
the single-phase perovskite structure with nanocrystalline size has been confirmed from the X-ray powder diffraction patterns. The stretching
and bending vibrations of the metal cations are confirmed from the FTIR spectra. The electrical conductivity of the materials is found to
increase with increasing temperature measured by using a modified four-probe technique. The electrochemical behavior has been studied by
using potentiostatic polarization method in KOH solutions at two different concentrations of 1 and 2M. From the polarization studies it has
been found that the material La0.4Sr0.6FeO3 gives the lowest corrosion rate of 0.001mmpy in 1M KOH solution.
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| Publisher |
Elsevier
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| Date |
2005
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cecri.csircentral.net/128/1/068-2005.pdf
Augustin, C.O. and Kalaiselvan, R. and Nagaraj, R. and Berchmans, L.J. (2005) Effect of La3+ substitution on the structural, electrical and electrochemical properties of strontium ferrite by citrate combustion method. Materials Chemistry and Physics, 89 (2). pp. 406-411. |
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| Relation |
http://cecri.csircentral.net/128/
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