Proton-conductive nano zeolite-PVA composite film as a new water-absorbing electrolyte for water electrolysis

M. Nishihara, Y. Terayama, T. Haji, S. M. Lyth, S. Satokawa, H. Matsumoto

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Abstract

In this study, organic-inorganic composite electrolyte membranes are developed for a novel water-absorbing porous electrolyte water electrolysis cell. As the materials of the composite electrolyte membrane, 80 wt% of a proton-con-ducting nano zeolite (H-MFI) as an electrolyte and 20 wt% of poly(vinyl alcohol) (PVA) as a cross-linkable matrix are used. The nano zeolite is prepared by a milling process. The nano zeolite-PVA composite membrane precursors are prepared by spraying onto a substrate, followed by cross-linking. The resulting nano zeolite-cross-linked PVA composite films are then evaluated for their properties such as proton conductivity as electrolyte membranes for the water-absorbing porous electrolyte water electrolysis cell. It is confirmed that conventional materials such as zeolites and PVA can be used for the water electrolysis as an electrolyte.

Original languageEnglish
Pages (from-to)256-264
Number of pages9
JournalExpress Polymer Letters
Volume12
Issue number3
DOIs
Publication statusPublished - Mar 2018

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All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

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