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Phase Behavior and Ionic Conduction in the Composite Electrolytes CsH2PO4/SDP⋅2H2O

Authors
  • Veer, D.1
  • Kumar, P.1
  • Singh, D.2
  • Kumar, D.1
  • Kumar, A.3
  • Katiyar, Ram S.4
  • 1 Gurukula Kangri (Deemed to be University), Haridwar, 249404, India , Haridwar (India)
  • 2 M. J. P Rohilkhand University, Bareilly, 243006, India , Bareilly (India)
  • 3 Delhi University, Delhi, 110008, India , Delhi (India)
  • 4 University of Puerto Rico, San Juan, PR 00925-2537, USA , San Juan (United States)
Type
Published Article
Journal
Russian Journal of Inorganic Chemistry
Publisher
Pleiades Publishing
Publication Date
Dec 01, 2021
Volume
66
Issue
14
Pages
2059–2067
Identifiers
DOI: 10.1134/S003602362114014X
Source
Springer Nature
Keywords
Disciplines
  • Synthesis and Properties of Inorganic Compounds
License
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Abstract

AbstractSolid acid composite electrolytes CsH2PO4(CDP)/NaH2PO4(SDP)⋅2H2O were prepared and observed the structural, thermal and transport properties by X-ray diffraction, field emission scanning electron microscopy, energy dispersive X-ray analysis, differential scanning calorimetry, fourier transform infrared spectroscopy, and conductivity measurement. We have investigated superprotonic phase transition at 235°C in CDP, at which the conductivity increased up to 2 to 3 orders of magnitude. The initial dehydration event in CDP occurs at 250°C. The performance of CDP was increased due to the addition of SDP⋅2H2O in the form of stability. Thermal characterization showed that introducing the additivities, dehydration behavior shifted to the lower at the higher temperature. The conductivity is increased above the temperature of 170°C which was found of the composite electrolytes 70CDP/30SDP⋅2H2O, 60CDP/40SDP⋅2H2O. The electrodes were prepared by a vacuum coating unit of silver.

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