High proton conductivity in anodic ZrO2-WO3-SiO 2 nanofilms

Ke Ye, Yoshitaka Aoki, Etsushi Tsuji, Shinji Nagata, Hiroki Habazaki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The proton conductivity of the anodic ZrO2-WO 3-SiO2 nanofilms prepared by anodizing of sputter-deposited Zr37W47Si16 alloy at several formation voltages for 1.8 ks in 0.1 mol dm-3 phosphoric acid electrolyte at 20°C has been examined below 250°C in various environments. The proton conductivity activated by thermal treatment at 250°C is not influenced by the presence of O2 and H2O in the atmosphere. However, the conductivity is enhanced by one order of magnitude in H2-containing atmosphere. The H2-induced conductivity enhancement is reversible; the enhanced conductivity is returned to an original value by exposing again in an O 2- containing atmosphere.

Original languageEnglish
Title of host publicationSolid State Ionic Devices 9 - Ion Conducting Thin Films and Multilayers
Pages193-201
Number of pages9
Volume50
Edition27
DOIs
Publication statusPublished - 2012 Dec 1
Event9th Solid State Ionic Devices Sympsoium - 22nd ECS Meeting - Honolulu, HI, United States
Duration: 2012 Oct 72012 Oct 12

Other

Other9th Solid State Ionic Devices Sympsoium - 22nd ECS Meeting
CountryUnited States
CityHonolulu, HI
Period12/10/712/10/12

ASJC Scopus subject areas

  • Engineering(all)

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