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Proton infiltration of phosphosilicate glass-electrolytes for intermediate temperature fuel cell

Published online by Cambridge University Press:  15 January 2013

Yusuke Daiko ,
Takeshi Yamada ,
Atsushi Mineshige  and
Tetsuo Yazawa
Yusuke Daiko
Affiliation:
Department of Materials Science and Chemistry, University of Hyogo, 2167 Shosha, Himeji, 671-2280
Takeshi Yamada
Affiliation:
Department of Materials Science and Chemistry, University of Hyogo, 2167 Shosha, Himeji, 671-2280
Atsushi Mineshige
Affiliation:
Department of Materials Science and Chemistry, University of Hyogo, 2167 Shosha, Himeji, 671-2280
Tetsuo Yazawa
Affiliation:
Department of Materials Science and Chemistry, University of Hyogo, 2167 Shosha, Himeji, 671-2280
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Abstract

A fast proton conducting glass with proton transport number tH = 1 was successfully prepared by using conventional melting method. In-situ FTIR (Fourier transform infrared) measurements under hydrogen atmosphere, temperature of 300°C and applying 1 V between Pt electrodes were carried out in order to monitor the proton concentration. The electrode reaction on Pt in these conditions is similar to that under intermediate-temperature fuel cell operation. It was found from the in-situ FTIR measurements that the absorbance around 2900 cm-1 increases clearly after applying 1 V, whereas no significant change was observed around 3400 cm-1. Proton infiltration into the glass is discussed based on the in-situ FTIR and impedance results.

Keywords

ionic conductorion-solid interactionselectrical properties
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1495: Symposium I – Functional Materials for Solid Oxide Fuel Cells , 2013 , mrsf12-1495-i14-05
Copyright
Copyright © Materials Research Society 2013

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