Solid electrolyte hydrocarbon gas sensor using zeolite as the sensitive phase

被引：21
|
作者：
Dubbe, A [1 ]
Moos, R [1 ]
机构：
[1] Univ Bayreuth, Chair Funct Mat, Fac Engn Sci, D-95440 Bayreuth, Germany
来源：
ELECTROCHEMICAL AND SOLID STATE LETTERS | 2006年 / 9卷 / 05期
关键词：
D O I：
10.1149/1.2181292
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A Na+ ion conducting ZSM-5 zeolite is applied as the sensitive phase in a potentiometric gas sensor consisting of the cell Au/(Na2CO3,BaCO3)/zeolite/Au, where the Na2CO3/Au system serves as the reference electrode. The cell voltage shows a linear response to changes of the logarithm of propane partial pressure (200-4000 Pa) in CO2/O-2/N-2 at 673 K. The proposed mechanism assumes Na or Na+ activity changes in the zeolite pores due to hydrocarbon sorption. An independent effect is a weak response of the zeolite/Au electrode to O-2 and CO2 due to oxide and carbonate formation. (c) 2006 The Electrochemical Society.
引用
收藏
页码：H31 / H34
页数：4
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