Reactivity of SnO2-CuO nanocrystalline materials with H2S:: a coupled electrical and Raman spectroscopic study

被引：84

作者：

Pagnier, T

Boulova, M

Galerie, A

Gaskov, A

Lucazeau, G

机构：

[1] ENSEEG, INPG, UMR CNRS, Lab Electrochim & Physicochim Mat & Interfaces, F-38402 St Martin Dheres, France

[2] Moscow State Univ, Dept Chem, Lab Diagnost Inorgan Mat, Moscow 119899, Russia

[3] ENSEEG, INPG, UMR CNRS, Lab Thermodynam & Physicochim Mat, F-38402 St Martin Dheres, France

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2000年 / 71卷 / 1-2期

关键词：

tin oxide; hydrogen sulfide; nanocyrystal; Raman spectroscopy; reactivity;

D O I：

10.1016/S0925-4005(00)00598-0

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Nanocrystalline CuO-doped SnO2 powders produced by different ways have been subjected to H2S at 100 degreesC. As for pure SnO2, the reversible formation of SnSx was deduced from Raman spectra and correlated with the changes in electrical resistance. When the initial resistance of the sample was high, adsorbed SO4 was observed, and in this case only, the reversible formation of Cu2S. These various phenomena are discussed in the light of thermodynamic data and the influence of powder preparation is emphasized. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：134 / 139

页数：6

共 13 条

[1] Structural characterization of nanocrystalline SnO2 by X-ray and Raman spectroscopy
Abello, L
Bochu, B
Gaskov, A
Koudryavtseva, S
Lucazeau, G
Roumyantseva, M
[J]. JOURNAL OF SOLID STATE CHEMISTRY, 1998, 135 (01) : 78 - 85
[2] BOULOVA M, 1999, NATO SCI SERIES, P285
[3] TIN DIOXIDE THIN-FILM GAS SENSOR PREPARED BY CHEMICAL-VAPOR-DEPOSITION - INFLUENCE OF GRAIN-SIZE AND THICKNESS ON THE ELECTRICAL-PROPERTIES
BRUNO, L
PIJOLAT, C
LALAUZE, R
[J]. SENSORS AND ACTUATORS B-CHEMICAL, 1994, 18 (1-3) : 195 - 199
[4] GAS SENSITIVITY OF SNO2/CUO HETEROCONTACTS
DEVI, GS
MANORAMA, S
RAO, VJ
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1995, 142 (08) : 2754 - 2757
[5] RAMAN-SCATTERING FROM SINGLE-CRYSTALS OF CUPRIC OXIDE
IRWIN, JC
CHRZANOWSKI, J
WEI, T
LOCKWOOD, DJ
WOLD, A
[J]. PHYSICA C, 1990, 166 (5-6): : 456 - 464
[6] SURFACE PROCESSES IN THE DETECTION OF REDUCING GASES WITH SNO2-BASED DEVICES
KOHL, D
[J]. SENSORS AND ACTUATORS, 1989, 18 (01): : 71 - 113
[7] LENAERTS S, 1994, SENSOR ACTUAT B-CHEM, V18, P478
[8] HYDROGEN-SULFIDE SENSOR-BASED ON TIN OXIDE DEPOSITED BY SPRAY-PYROLYSIS AND MICROWAVE PLASMA CHEMICAL-VAPOR-DEPOSITION
MANORAMA, S
DEVI, GS
RAO, VJ
[J]. APPLIED PHYSICS LETTERS, 1994, 64 (23) : 3163 - 3165
[9] In situ coupled Raman and impedance measurements of the reactivity of nanocrystalline SnO2 versus H2S
Pagnier, T
Boulova, M
Galerie, A
Gaskov, A
Lucazeau, G
[J]. JOURNAL OF SOLID STATE CHEMISTRY, 1999, 143 (01) : 86 - 94
[10] Influence of copper on sensor properties of tin dioxide films in H2S
Rumyantseva, MN
Labeau, M
Senateur, JP
Delabouglise, G
Boulova, MN
Gaskov, AM
[J]. MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 1996, 41 (02): : 228 - 234

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