Intermediate temperature proton electrolytes based on cesium dihydrogen phosphate and Butvar polymer

Irina N. Bagryantseva, Anna A. Gaydamaka, Valentina G. Ponomareva

Research output: Contribution to journalArticlepeer-review

Abstract

The phase composition, electrotransport properties, and spectral characteristics of the (1 − x)CsH2PO4–xButvar system (х = 0–0.2 wt%) were investigated in details. Butvar was proved to be a chemically suitable matrix for CsH2PO4 with a good adhesion to acid salt permitting the formation of flexible membrane. The chemical interaction of organic matrix with acid salt was not observed. A new method of “polymer-CsH2PO4” composites preparation through alcohol solutions of initial components was proposed. The flexible and thin (~ 200 μm) proton membranes with uniform salt distribution were obtained. Composite polymer electrolytes are characterized by high proton conductivity values (~ 5 × 10−3 S/cm) at 240 °C and are stable under conditions of high humidity (PH2O ~ 0.3 atm.).

Original languageEnglish
Pages (from-to)1813-1818
Number of pages6
JournalIonics
Volume26
Issue number4
DOIs
Publication statusPublished - 1 Apr 2020

Keywords

  • Acid salt
  • Cesium dihydrogen phosphate
  • Composite polymer electrolyte
  • Polyvinyl butyral
  • Proton conductivity
  • BEHAVIOR
  • MEMBRANES
  • CSHSO4
  • CSH2PO4
  • DRY
  • CONDUCTIVITY
  • COMPOSITE ELECTROLYTES
  • SILICA

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