Abstract
This study was focused on enhancing the conductivity of lithium tin phosphate, LiSn2P3O12 by partially substituting Sn4+ ions with Cr3+ ions to obtain system with general formula Li1+xCrxSn2-xP3O12. Li1+xCrxSn2-xP3O12 powders with x = 0.2, 0.4, 0.6 and 0.8 were prepared by mechanochemical milling method. X-ray diffraction analysis indicated that all samples consisted of triclinic crystalline LiSn2P3O12 structure. Energy Dispersive X-ray analysis suggested that Cr3+ was successfully substituted into the LiSn2P3O12 crystalline structure. Impedance analysis showed an increase in conductivity with increase in x. The enhancement in bulk conductivity was due to increase in number and polarisability of Li+ ions and crystallinity. The increase in grain boundary conductivity was ascribed to enhancement in Li+ migration as a result of increase in contact between grains. The conductivity versus the reciprocal of temperature plots showed a sudden change in conductivity at 393 K for the sample with x = 0.2 and 373 K for the sample with x = 0.4, 0.6 and 0.8. This was attributed to a structure transitionphenomenon. All samples showed Arrhenian behaviour.
| Original language | English |
|---|---|
| Pages (from-to) | 10254-10265 |
| Number of pages | 12 |
| Journal | International Journal of Electrochemical Science |
| Volume | 7 |
| Issue number | 10 |
| Publication status | Published - 2012 |
Fingerprint
Keywords
- Arrhenius
- Conductivity
- Nanomaterial
- Nasicon
- Solid Electrolyte
- Tin
ASJC Scopus subject areas
- Electrochemistry
Cite this
Chromium substituted liSn2P3O12 solid electrolyte. / Norhaniza, R.; Subban, R. H Y; Mohamed, N. S.; Ahmad, Azizan.
In: International Journal of Electrochemical Science, Vol. 7, No. 10, 2012, p. 10254-10265.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Chromium substituted liSn2P3O12 solid electrolyte
AU - Norhaniza, R.
AU - Subban, R. H Y
AU - Mohamed, N. S.
AU - Ahmad, Azizan
PY - 2012
Y1 - 2012
N2 - This study was focused on enhancing the conductivity of lithium tin phosphate, LiSn2P3O12 by partially substituting Sn4+ ions with Cr3+ ions to obtain system with general formula Li1+xCrxSn2-xP3O12. Li1+xCrxSn2-xP3O12 powders with x = 0.2, 0.4, 0.6 and 0.8 were prepared by mechanochemical milling method. X-ray diffraction analysis indicated that all samples consisted of triclinic crystalline LiSn2P3O12 structure. Energy Dispersive X-ray analysis suggested that Cr3+ was successfully substituted into the LiSn2P3O12 crystalline structure. Impedance analysis showed an increase in conductivity with increase in x. The enhancement in bulk conductivity was due to increase in number and polarisability of Li+ ions and crystallinity. The increase in grain boundary conductivity was ascribed to enhancement in Li+ migration as a result of increase in contact between grains. The conductivity versus the reciprocal of temperature plots showed a sudden change in conductivity at 393 K for the sample with x = 0.2 and 373 K for the sample with x = 0.4, 0.6 and 0.8. This was attributed to a structure transitionphenomenon. All samples showed Arrhenian behaviour.
AB - This study was focused on enhancing the conductivity of lithium tin phosphate, LiSn2P3O12 by partially substituting Sn4+ ions with Cr3+ ions to obtain system with general formula Li1+xCrxSn2-xP3O12. Li1+xCrxSn2-xP3O12 powders with x = 0.2, 0.4, 0.6 and 0.8 were prepared by mechanochemical milling method. X-ray diffraction analysis indicated that all samples consisted of triclinic crystalline LiSn2P3O12 structure. Energy Dispersive X-ray analysis suggested that Cr3+ was successfully substituted into the LiSn2P3O12 crystalline structure. Impedance analysis showed an increase in conductivity with increase in x. The enhancement in bulk conductivity was due to increase in number and polarisability of Li+ ions and crystallinity. The increase in grain boundary conductivity was ascribed to enhancement in Li+ migration as a result of increase in contact between grains. The conductivity versus the reciprocal of temperature plots showed a sudden change in conductivity at 393 K for the sample with x = 0.2 and 373 K for the sample with x = 0.4, 0.6 and 0.8. This was attributed to a structure transitionphenomenon. All samples showed Arrhenian behaviour.
KW - Arrhenius
KW - Conductivity
KW - Nanomaterial
KW - Nasicon
KW - Solid Electrolyte
KW - Tin
UR - http://www.scopus.com/inward/record.url?scp=84872835334&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84872835334&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:84872835334
VL - 7
SP - 10254
EP - 10265
JO - International Journal of Electrochemical Science
JF - International Journal of Electrochemical Science
SN - 1452-3981
IS - 10
ER -