Oxide glass/amorphous metal alloy laminated membrane for hydrogen separation

Hiromasa Tawarayama, Hideo Hosono, Shin ichi Yamaura, Wei Zhang, Akihisa Inoue

Research output: Contribution to journalArticlepeer-review


A five-layered membrane composed of an amorphous Ni-Nb-Zr alloy substrate (ca. 30μm), thin proton-electron mixed conductive tungsten phosphate glass films (ca. 50 nm) and Ni coatings (ca. 20 nm) was fabricated by pulsed laser deposition and vacuum evaporation. A flux of hydrogen passed through the laminated membrane without Pd at 673 K at ca. 2 × 10 -6 mol-cm -2·s -1, and no degradation was observed in the 10h operation. The present results suggest that amorphous Ni-Nb-Zr alloy passivated with WO 3-based oxide glass is a promising material for H 2 filtering in a medium temperature range.

Original languageEnglish
Pages (from-to)502-503
Number of pages2
JournalChemistry Letters
Issue number5
Publication statusPublished - 2009
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)


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