Efficient, anhydrous proton-conducting nanofilms of Y-doped zirconium pyrophosphate at intermediate temperatures

Yuanzhi Li, Toyoki Kunitake, Yoshitaka Aoki, Emi Muto

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

The efficient, anhydrous proton-conducting nanofilms of Y-doped zirconium pyrophosphate at intermediate temperatures was investigated. The films of yttrium-doped zirconium phosphate were deposited on an indium tin oxide (ITO) substrate in a layer-by-layer fashion by using a mixture of zirconium tetra-n-butoxide, yttrium methoxyethoxide, and P2O5 as precursor. An Y-doped zirconium phosphate layer was deposited onto the ITO substrate by spin-coating with a Mikasa 1H-D7 spin coater. The proton conductivity of the as-fabricated films was measured by the ac impedence method. Pt electrodes were deposited on the top of the nanofilms through a shadow mask to form a Pt/film/ITO stack. It was observed that the nanofilms of amorphous aluminosilicate gave high proton conductivities with a low ASR value of 0.24Ωcm2 at 400°C.

Original languageEnglish
Pages (from-to)2398-2404
Number of pages7
JournalAdvanced Materials
Volume20
Issue number12
DOIs
Publication statusPublished - Jun 18 2008
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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