首页|Mixed Conduction of Proton and Electron in Tungsten Phosphate Glass and Its Hydrogen Transport

Mixed Conduction of Proton and Electron in Tungsten Phosphate Glass and Its Hydrogen Transport

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  • Trans Tech Publications Ltd
The transference number of protons and the hydrogen transport behavior through tungsten phosphate glass have been measured through the use of a concentration cell. Based on measurement of the electrical motive force by changing the hydrogen partial pressure of both sides of a specimen glass kept in the concentration cell, the ionic transference number was estimated to be 48%. When one side is kept in hydrogen and the other in nitrogen, hydrogen transport is observed and its quantity is accelerated by applying a positive dc bias on the hydrogen side. After applying the dc bias continuously for over 1 h, the hydrogen transport is abruptly increased with no cracks and the hydrogen flux is 1.5×10~(-3) μmolcm~(-2)s~(-1).

hydrogenmixed conductorphosphate glassprotonconcentration cell

Satoru Fujitsu、Hiroshi Kawazoe

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Dept. of Materials Science and Ceramic Technology, Shonan Institute of Technology Tsujido-Nishikaigart, Fujisawa, Kanagawa, 251-8511 Japan

Kawazoe Frontier Technology, Inc., Kuden, Sakae-ku, Yokohama, Kanagawa 247-0014, Japan

2010

10.4028/www.scientific.net/KEM.421-422.443

Key engineering materials

Key engineering materials

ISSN：1013-9826
年,卷(期)：2010.421/422
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