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

Abstract:

Article Preview

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 molcm-2s-1.

Info:

Periodical:

Key Engineering Materials (Volumes 421-422)

Edited by:

Tadashi Takenaka, Hajime Haneda, Kazumi Kato, Masasuke Takata and Kazuo Shinozaki

Pages:

443-446

DOI:

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

Citation:

S. Fujitsu and H. Kawazoe, "Mixed Conduction of Proton and Electron in Tungsten Phosphate Glass and its Hydrogen Transport", Key Engineering Materials, Vols. 421-422, pp. 443-446, 2010

Online since:

December 2009

Export:

In order to see related information, you need to Login.