A study of iso- and alio-valent cation doped Ag2SO4 solid electrolyte |
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Authors: | K. Singh S.M. Pande S.W. Anwane S.S. Bhoga |
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Affiliation: | (1) Department of Physics, Amravati University, Amravati-444 602, India, IN;(2) Department of Physics, Shri R.K.N. Engineering College, Gittikhadan, Katol Road, Nagpur-440 013, India, IN;(3) Department of Physics, Nagpur University, Nagpur-440 010, India, IN |
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Abstract: | 2 SO4. The solid solubility limits up to x≤3 mole% for monovalent, x≤5.27 mole% for divalent and x≤3.63 mole% for trivalent cation doped Ag2SO4 are set with XRD, SEM, IR and DSC techniques. A predominant dependence of conductivity on the ionic size of iso- and alio-valent cations is observed. In particular, the conductivity enhances in both α and β phases, despite having a lower ionic-size dopant cation (relative to that of Ag+) in the transition element cation doped Ag2SO4. Ca2+, Ba2+, Y3+ and Dy3+ doped samples show depature from the regular behaviour in the β-phase. The conductivity behaviour is discussed considering ionic size, valence and electronic structure of the guest cations. Received: 3 February 1997/Accepted: 27 May 1997 |
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Keywords: | PACS: 66.30 61.7 82.45 |
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