THE MECHANISM OF OPERATION OF WO3-BASED H2S SENSORS

被引：60

作者：

BARRETT, EPS ^{[1
]}

GEORGIADES, GC ^{[1
]}

SERMON, PA ^{[1
]}

机构：

[1] BRUNEL UNIV,DEPT CHEM,UXBRIDGE UB8 3PH,MIDDX,ENGLAND

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 1990年 / 1卷 / 1-6期

关键词：

D O I：

10.1016/0925-4005(90)80184-2

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

WO3-based sensors are selective and sensitive to H2S. Their mode of operation has been investigated and the materials characterized using scanning electron microscopy, Hg-porosimetry, X-ray fluorescence and X-ray diffraction. Thermal analyses have also been carried out. The reaction mechanism is facilitated via an anion-exchange process. The results of the characterization processes are described and the kinetics of reaction are also analysed, which will allow for the optimization of these devices. © 1990.

引用

页码：116 / 120

页数：5

共 33 条

[11] THE GAS-SENSING PROPERTIES OF BISMUTH MOLYBDATE EVAPORATED-FILMS [J].

HYKAWAY, N ;

SEARS, WM ;

FRINDT, RF ;

MORRISON, SR .

SENSORS AND ACTUATORS, 1988, 15 (02) :105-118

[12]

Johnson R. H., 1975, U.S. Patent, Patent No. [3 901 067, 3901067]

[13] HIGH-SENSITIVITY H2S GAS SENSORS [J].

KANEFUSA, S ;

NITTA, M ;

HARADOME, M .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1985, 132 (07) :1770-1773

[14]

LALAUZE R, 1983, P INT M CHEM SENS FU, P47

[15]

LAMBRICH R, 1983, P INT M CHEM SENSORS, P73

[16]

Lantto V., 1987, EUROSENSORS 87, P51

[17] STUDIES OF MOLYBDENA-ALUMINA CATALYSTS .4. RATES AND STOICHIOMETRY OF SULFIDATION [J].

MASSOTH, FE .

JOURNAL OF CATALYSIS, 1975, 36 (02) :164-184

[18] TIN DIOXIDE GAS SENSORS .1. ASPECTS OF THE SURFACE-CHEMISTRY REVEALED BY ELECTRICAL CONDUCTANCE VARIATIONS [J].

MCALEER, JF ;

MOSELEY, PT ;

NORRIS, JOW ;

WILLIAMS, DE .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1987, 83 :1323-1346

[19]

MCILWRIC.CR, 1973, J PHYS E SCI INSTRUM, V6, P1208

[20] SEMICONDUCTOR GAS SENSORS [J].

MORRISON, SR .

SENSORS AND ACTUATORS, 1982, 2 (04) :329-341

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