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

共 8 条

[1] Thermodynamic equilibria and kinetic reversibility of the solid electrolyte/electron conductor/gas boundary at low temperature [J].

Dobrovolsky, Y ;

Leonova, L ;

Vakulenko, A .

SOLID STATE IONICS, 1996, 86-8 :1017-1021

[2] SULFUR POTENTIAL MEASUREMENTS WITH A 2-PHASE SULFIDE OXIDE ELECTROLYTE [J].

JACOB, KT ;

IWASE, M ;

WASEDA, Y .

JOURNAL OF APPLIED ELECTROCHEMISTRY, 1983, 13 (01) :55-67

[3]

LEONOVA L, 1991, METROLOGIYA, V6, P45

[4]

MIURA N, 1983, CHEM SENSORS, P233

[5]

NAGASHIMA K, 1983, BUNSEKI KAGAKU, V32, P219

[6]

OTAUKA S, 1985, J MIN MET I JPN, V101, P30

[7] A H2S-sensor for on-line measurements in a coal gasification system [J].

Vandecruys, F ;

Brauns, E ;

Engelen, W ;

De Schutter, F ;

Vangrunderbeek, J .

SOLID STATE IONICS, 1998, 112 (1-2) :95-102

[8] A H2S sensor-based on Na-β-alumina as solid electrolyte and Na2S as auxiliary electrode [J].

Vandecruys, F ;

Stephen, R ;

De Schutter, F ;

Vangrunderbeek, J .

SENSORS AND ACTUATORS B-CHEMICAL, 1997, 43 (1-3) :230-234

← 1 →