Electrochemical processes of H2S detection in air and solution

被引：19

作者：

Bukun, N ^{[1
]}

Dobrovolsky, Y ^{[1
]}

Levchenko, A ^{[1
]}

Leonova, I ^{[1
]}

Osadchii, E ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Problems Chem Phys, Chernogolovka 142432, Russia

来源：

JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2003年 / 7卷 / 02期

关键词：

hydrogen sulphide sensor; solid-state electrochemical cell;

D O I：

10.1007/s10008-002-0311-6

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

An electrochemical cell of potentiometric type Na0.5WO3 (reference electrode)/Na+-solid electrolyte/ PbS (working electrode) capable of rapid and selective changing of the electromotive force value owing to H2S concentration variations in gas surroundings has been investigated at 295 +/- K and a relative humidity of 52%. The sensitivity of this cell was 130 mV/decade at a H2S concentration within the range 13-130 ppm. Sodium-conducting solid electrolytes of Na3Zr2Si2PO12 and Na5GdSi4O12 compositions were used as the Na+ solid electrolyte. Such a cell can be used for analysis of H2S containing water solutions when the reference electrode and the Na+ solid electrolyte are thoroughly isolated from the surroundings.

引用

页码：122 / 124

页数：3

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