The features of thin film and ceramic sensors at the detection of CO and NO2

被引：54

作者：

Ivanovskaya, M

Bogdanov, P

Faglia, G

Sberveglieri, G

机构：

[1] Belarusian State Univ, Sci & Res Inst Phys & Chem Problems, Minsk 220080, BELARUS

[2] Univ Brescia, INFM, Gas Sensors Lab, I-25133 Brescia, Italy

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2000年 / 68卷 / 1-3期

关键词：

In2O3; In2O3-SnO2; In2O3-NiO; gas sensors; NO2; detection; CO detection;

D O I：

10.1016/S0925-4005(00)00455-X

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Properties of In2O3, In2O3-SnO2 and In2O3-NiO ceramic and thin film sensors formed stat-ring from colloidal solutions for the detection of CO and NO2 are compared. Obtained results are discussed taking into account the redox mechanism of the conductivity changes. The additives affect gas-sensitive properties of In2O3 in two ways: (i) changing the activity of In2O3 when interacting with analyzed species by the change of Fermi energy, and (ii) directly participating in a chemical reaction with analyzed species. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：344 / 350

页数：7

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